Thunderstorm Manager is web application that provides an advanced thunderstorm display with real time lightning, radar and satellite information (where available), through standard web interfaces, with the capability of managing multiple lightning alert sites and customized alert notifications. It utilizes Vaisala's lightning network technologies - e.g. GLD360 (Global Lightning Dataset) and precision networks like NLDN (National Lightning Detection Network) - and algorithms to show real-time lightning data and short-term lightning forecasts.

In addition to lightning alert sites, Thunderstorm Manager features include (1) a time-based lightning density display and (2) an optional thunderstorm cell identification, tracking, and forecasting display. Furthermore, Thunderstorm Manager can integrate many weather-related parameters, including weather station information, infrared and visible satellite imagery and weather radar imagery (where available).

This document provides a detailed overview of the Thunderstorm Manager features and functionality to help the user understand how they can use the software to improve their daily operations.

Several application sections (frames) can be hidden when they are not needed. For example, you can select to display just the map view. For details, see topic Map View Basics.

For better viewing in night-time lighting, a special night display can be selected. For details, see topic Display Settings.

This software works best with the latest versions of the following browsers: MS Edge, Mozilla Firefox, Safari and Google Chrome (preferred).

The software does not use or rely on any 3rd party plug-ins, so it will work in a mobile environment. Additional optimization may be required depending on what mobile environment is being used.

You can change the day/night display mode:

• In the application control bar, click the Day/Night icon:
  
• The mode changes immediately, but the next time you log in, the default day/night display mode will be used.

The Application Header at the top of the application contains the following:

Tip: To view short descriptions of the application header parts, move the mouse pointer over the picture.

• View selector: Lets you select different view contexts (when configured) for your organizations.
• Date and time: Date and time is either local time, or a time zone based on an hourly offset from UTC (i.e., "UTC-04"). Time zone can be changed using the Admin icon.
• Web Relays: Displays the web relay devices associated with the customer and the connection status of the respective relay devices. Click the icon to see the web relays and connection status (i.e., "Connected", "Disconnected").
• Alerts: Displays the number of active alerts along with a color representing the highest alert severity. The Alert tab can be configured to show alongside the Map. Clicking the icon will open the Alerts History page with upto last 30 days Alert History. A red colored Alert icon indicates severity level "Alarm". Orange indicates severity level "Warning". Blue indicates severity level "Info".
• Day/Night: Lets you select day or night view.
• Help: Selecting the help icon opens a web page containing this document.
• Admin: Lets you administer your account (i.e., reset password, change timezone, change language).
• Logout: Button for logging out of the system.

Map View displays the map of the area and the selected overlay layers.

The above map snapshot shows a national radar mosaic configured for a winter weather display, with a lightning layer. Radar data may only be available in certain locations. Please check with your local Vaisala representative.

Customers will be able to see lightning in a restricted area, which is determined at the time of purchase.

The map control panel allows you to select what is displayed in Maps View.

• To view the control panel, click the arrow on the left side of the map:

  
• Select the map layers to be displayed by clicking the appropriate layer's checkbox or button.

• To hide the control panel, click the arrow between the panel and the map:

  

To open or close the legend that explains the layer display (colors, shapes):

• Click the arrow next to layer name in the Map Control Panel:

  

• The map's legend is displayed as well as an option to change the Opacity of the layer.

  
• Use the "slider" to change the Opacity (transparency) of the layer.

• Distance scale is displayed in the lower left corner of the map:

  

• The pointer location (in decimal coordinates) is displayed in the lower right corner of the map:

  

• Hide Map Control Panel. See section Map Control Panel.
• Hide Alerts Panel. See section Alert Panel.

Enter pan mode by clicking onto the hand icon. Pan mode continues until the icon is clicked again or a different icon is selected.

To change the view by panning, do the following:

• Click and hold the mouse button down
• Pan by dragging the mouse until you see the view you want, then release
• The mouse wheel can be used to zoom in and out while in this mode
• You can also zoom in by pressing the SHIFT key and dragging the cursor with the mouse over the desired area

To change the view by panning, do the following:

• Click the direction, icon on the Pan toolbar (see below)

  

Pan mode does NOT need to be active to use the Pan toolbar.

Enter zoom mode by clicking onto the magnifier icon. Zoom mode continues until the icon is clicked again or a different icon is selected..

To change the view by zooming, do the following:

• Click and hold the left mouse button in the upper left corner of a bounding box. This is Point A
• Drag the mouse to another location that becomes the lower right corner of a bounding box. This is Point B. The bounding box is displayed dynamically with a red border (see below)

• Release to zoom into the bounding box or a bit larger area

  

To zoom in, do one of the following:

• While in pan mode, spin the mouse scroll wheel forward.
• Click the icon on the Zoom toolbar.

To zoom out, do one of the following:

• While in pan mode, spin the mouse scroll wheel backwards.
• Click the icon on the Zoom toolbar.

Zoom out to see the entire world by doing the following:

• Click the icon on the Zoom toolbar.

You can measure distances between points on the map using the ruler tool on the left side of the map:

• Click on the Ruler icon to activate the feature. The icon will become orange when active.
• Next, click & release on Point A. Point A is now fixed onto the map.
• Moving the mouse over the map dynamically draws a line with distance between Point A and the current mouse position
• Clicking on Point B attaches the ruler line to the map (see below)

• The next click & release starts a new Point A

  
• Pressing the ESC key on your keyboard will cause the ruler line to disapear
• Click the Ruler icon again (or another icon) to deactivate the feature

The zoom and pan toolbars are accessible when the ruler is active

You can inspect each lightning discharge for information about the event:

• Click on the Inspector icon to activate the feature. The icon will become orange when active. In the examples below the strike being inspected is shown with a red circle.

• Next, hover over a lightning event. If the zoom level is such that the lightning image displayed is too far to show individual discharges, a group display is shown with density values and a count of the number of strokes.

  

• If the zoom level is such that the lightning image displayed is close enough to show individual discharges, a single event description is shown with the amplitude (in kA), the Type (positive or negative cloud to ground + or -, or cloud C), and the location (Latitude and Longitude).

  
• In both cases the age of the event or group of events and the time will be shown.

You can zoom back to your authorized extent (area of coverage for displaying lightning discharges) if you previously zoomed out:

• Click on the Extend icon. The icon will momentarily become orange.

• The view will return to the extended area as shown below.

  

You can play back the selected layers (radar, lightning, satellite) using the animation controls at the top of the page:

• First, select the Time span from the drop down list (from 1/2 hour to 7 days)
• To start, click the Start button
• Animation frames are aquired for the time period selected.

  Acquiring frames is slower than playback

• Continuous playback occurs after frames are aquired. The time stamp of each frame is displayed
• You can select a different Animation speed from the drop-down list at any time (there are 5 speeds)
• To pause the animation, click the Pause button

  While paused, the Time-slider on the bottom of the screen can be held to control which frame is in the view
  
  

  The Ruler Tool and Inspector Tool can be used while animation is paused

• To resume the animation, click the Resume icon
• To stop animation, click the Stop icon

Animation playback will stop when pan or zoom tools are used

You can adjust the following on the Map Control Panel:

• Which layers are displayed: Layers.

Users can display more or less information according to needs and data availability. To select map layers:

• If not already open, open the Map ControlPanel by clicking the arrow on the left side of the map:

  

• In the Layers section select the layer(s) to be displayed by clicking on the layer's checkbox or button:

  
• Wait while the system updates the map.

• Latest Lightning -

  Display cloud to ground & cloud to cloud or intra-cloud lightning for the past 25 minutes. Lightning data is color coded by age. The legend shows a description of each color.

  A plus symbol shows a positive polarity stroke. A negative symbol (or square) shows a negative polarity stroke.

  If you want to make the lightning colors stand out more or less, move the Opacity dial lower for more transparency, or higher for more opacity.

  
  
• Ground Lightning -

  Available with Vaisala Precision Networks lightning data, display only cloud to ground lightning for the last 120 minutes. Lightning data is color coded by age. The legend shows a description of each color.

  A plus symbol shows a positive polarity stroke. A negative symbol (or square) shows a negative polarity stroke.

  If you want to make the lightning colors stand out more or less, move the Opacity dial lower for more transparency, or higher for more opacity.

  
  
• All Lightning -

  Display cloud to ground and cloud to cloud or intra-cloud lightning for the last 120 minutes. Lightning data is color coded by age. The legend shows a description of each color.

  A plus symbol shows a positive polarity stroke. A negative symbol (or square) shows a negative polarity stroke. A small solid circle shows cloud lightning.

  Cloud lightning is only available for areas under high precision sensor networks.

  If you want to make the lightning colors stand out more or less, move the Opacity dial lower for more transparency, or higher for more opacity.

  
  

• Storm Intensity (optional) -

  

  This layer shows the level of intensity of each thunderstorm and the current risk area. As shown in the legend, the current storm cell is displayed as a blue polygon with a centroid. The intensity of the storm is displayed as a yellow storm centroid (low intensity), blue storm centroid (medium intensity) or red storm centroid (high intensity).

  If you want to make the cell or density colors stand out more or less, move the Opacity dial lower for more transparency, or higher for more opacity.

  
  

• Lightning Threat Zone (optional) -

  

  This layer shows the level of intensity of each thunderstorm and will display the tracking of the cell's path since its definition (it's centroid) (dashed line) and the time since it was defined, the projections of the storm risk areas in increments of 10 minutes, and the current trajectory vector and speed of the cell. The length of the vector is proportional to the speed of the storm cell.

  As shown in the legend, the current cell is displayed as a blue polygon and the intensity of the storm cell is displayed as a yellow storm centroid (low intensity), blue storm centroid (medium intensity) or red storm centroid (high intensity).

  If you want to make the cell, risk areas, or density colors stand out more or less, move the Opacity dial lower for more transparency, or higher for more opacity.

  Sometimes projection areas cannot be calculated out to 60 minutes (maximum) and only those that are calculated will be displayed.

  
  

• Radar (where available) -

  

  This layer shows you the type of precipitation detected by radars operating in the area. If no radar is available, this layer will not change the screen display. There may be more than one type of radar available for display (e.g. Radar and Winter Radar).

  If you want to make radar precipitation colors stand out more or less, move the Opacity dial lower for more transparency, or higher for more opacity.

  
  

• Satellite IR (where available) -

  

  This layer shows you the cloud coverage detected by satellites operating in the area. If no satellite data is available, this layer will not change the screen display.

  If you want to make satellite detected clouds stand out more or less, move the Opacity dial lower for more transparency, or higher for more opacity.

  
  

• Basemap Features -

  

  This layer will allow users to choose between different basemap options such as Dark basemap, Light basemap and Terrain basemap. The Dark basemap presents a mapbase with the background set to dark mode with no terrain , Light basemap presents the lighter basemap with no terrain and Terrain basemap includes a map with terrain features.

  
  

You can view the details of your outdoor warning systems from the Web Relays option.
The unique MAC Address associated to each Web relay device is displayed along with the connection status of the respective relay as either Connected or Disconnected

The state of the Web Relays icon on the Application Header, helps users to understand the current state of their web relays:

If the Web Relays icon is not highlighted, it indicates one of the two states below:


• The user is not subscribed to the outdoor warning system.
• The user is subscribed to the outdoor warning system and all web relays are connected.

If user is not subscribed to web relays, clicking into it will present user with the message, that they have no Web Relays in use:



If the user is subscribed to the outdoor warning system, clicking into it will present user with the list of web relays and their connection status showing as connected.



If the Web Relays icon is highlighted in red, it indicates there is at least one web relay device with a disconnected status.



Clicking into it will present user with the list of web relays and their connection status showing as either connected or disconnected.

Alert Regions can be configured around important assets and locations. Notifications can be generated with assigned alert severities when lightning moves into a region. Customers can receive alerts via e-mail or SMS texts to cell phones (where available) on one or more alert regions and alert types. Alert sounds can be activated on the UI so that a unique sounds can be heard when alert regions are active. Those settings are defined during configuration.

Alert regions

• Radial: Based off a center point and radius (defined during configuration)
• Polygon: An alert area can be defined as a polygon

• Alert region outlines are shown on the map and turn red when active. When inactive, the outlines of the alert areas will be grey (see below).

  

Alert severity

• Alarm - Typically used for alerts in the inner alert region (i.e., closest to the location of concern)
• Warning - Typically used for alerts in the middle alert region
• Info - Typically used for alerts in the outer alert regions

Alert thresholds

To be set during configuration

• Strike Count - Activate alerts based on one or more strikes within a region
• Type - Cloud-to-cloud strikes can be included or excluded
• All Clear Time - Clear alerts when strikes have been absent in a region for a period of time

Thresholds can be configured with more sensitivity for inner alert regions

Default configuration: Strike Count=1, Type=Included, Clear Time=15 minutes (or 30 minutes for Info alerts)

The alert panel contains a list of active alert notifications. The panel is located to the right of the Map view.

When lightning is active within a region, the following occurs:

• Alerts icon in the Application Header changes color indicating activity (see below).

  
• The Alert Panel includes the list of alerts indicated by the Alerts icon.

• If not already open, open the Alert Panel by clicking the arrow on the right side of the map (see below). The panel should be closed when not in use to provide more area for map viewing.

  

• The Alert Panel contains additional information for each active alert (see below).

  
• The alerts are sorted by highest severity, then most recent.

• Lightning alerts include the following information (see below).

  

The Alert Notification Table contains the list of the alerts for the last 30 days. The table is accessed by clicking the Alerts tab located on top of the map layer panels (see below). It also includes the Alert sound control panel and an option to export the table to a CSV file by clicking the export icon.

• The alert list in the table includes both active and inactive alerts
• Inactive alerts are displayed with a clear time
• Duration is the difference between Clear time and Active time or the time the alert has been active
• Default sorting is based on Active time
• A search field is available to search for specific words in the list
• The table not only shows the alert times but also the event times when the actual lighting occurred:
  • First event time: the time of the first lightning that triggered the alert
  • Active time: the time the alert was activated
  • Last event time: the time of the last lighting that happened while the alert was active
  • Clear time: the time the alert was cleared

Sounds for active alerts can be activated by toggling the feature to the On position.

• Includes a Sound setting dialog box to choose which alert severities generate sounds.

Sound settings are saved per username.

A unique sound is produced for each severity level.

Thunderstorm Manager provides thunderstorm cell identification, tracking, and forecasting using a lightning-based advanced algorithm. The algorithm uses time and space criteria to cluster lightning into storms and then accumulates additional lightning locations in time/space for determining storm direction and speed. The output from this algorithm is displayed as an additional layer within the user interface that can be turned on or off.

In the example below, the small blue, yellow, and red cloud symbols show the current position of the center of each thunderstorm cell. The color indicates the relative frequency of lightning being produced by each thunderstorm with blue representing low lightning rates, yellow representing moderate lightning rates, and red representing high lightning rates. The dashed white lines represent the past history (or track) of the thunderstorms and the plain arrows represent the future direction of the thunderstorms along with its velocity.

Once configured the service has the following capabilities:

• Alert Rings on screen change color
• Email
• SMS notifications (where reliably available)

Thunderstorm Manager has a lightning alert server that allows Vaisala to set up customers with regard to:

• Alert area latitude and longitude (alert location, e.g. airport or asset)
• Size of alert rings (e.g. information, warning and alarm rings)
• Email templates for alert and clear messages
• Email template for subject of email
• Locale
• Number of lightning strikes to trigger and alert
• Time to wait before clear message is sent
• Use cloud lightning or not

• Alerts can be viewed from the application menu bar

©Vaisala 2022. All rights reserved.
No part of this documentation may be reproduced in any form or by any means, electronic or mechanical (including photocopying), nor may its contents be communicated to a third party without prior written permission of the copyright holder.
The contents are subject to change without prior notice.
Please observe that this documentation does not create any legally binding obligations for Vaisala towards the customer or end user. All legally binding commitments and agreements are included exclusively in the applicable supply contract or Conditions of Sale.

Trademark Use Terms Copyright Use Terms Governing Use Terms Permission to Link Terms Third-Party Link Terms

Vaisala Inc. (Vaisala) owns and operates this Site. The Site includes material, items,logos, trademarks, text, software, photos,data and information ("Material") in its content that are the subject of trademark, copyright, patent or other proprietary protection. All right,title and/or interest in and to such Materials, including all associated proprietary rights, are held by and shall remain with Vaisala.You acknowledge that you do not acquire any ownership rights in, nor do you acquire any license to any rights, either expressed or implied,to the Materials by accessing and using this Site.Vaisala specifically reserves all rights not expressly authorized under these Terms of Use, and you are only authorized to use this Site and the Materials as outlined herein. Vaisala has the right, at any time and without notice, to change or discontinue this Site or any aspect or feature of this Site, including without limitation, the content,hours of availability, and the equipment needed for access or use of this Site, and any service or product offered at this Site.

You shall use the Vaisala Site for lawful purposes only.You shall not post or transmit on this Site any material which violates or infringes in any way upon the rights of others, which is unlawful, threatening, abusive, defamatory, invasive of privacy or publicity rights,vulgar, obscene, profane or otherwise objectionable, which encourages conduct that would constitute a criminal offense, gives rise to civil liability or otherwise violate any law. WithoutVaisala's express prior approval, you shall not post or transmit through this Site any material which contains advertising or any solicitation with respect to products or services. You shall not use this Site to advertise or perform any commercial solicitation, including without limitation, the solicitation of users to become subscribers of other on- line information services or products competitive with this Site. Any conduct by you that in Vaisala's discretion restricts or inhibits any other user from using or enjoying this Site will not be permitted. Further, you may not eliminate, remove, alter or modify any advertising placed on this Site.
Subject to the copyright and trademark use authorizations below, since this Site contains Materials that are the subject of copyright, trademark and other proprietary protection, you may not modify, publish,transmit, display, participate in the transferor sale, create derivative works, or in any way exploit,any of the Materials, in whole or in part, or this Site, in whole or in part,external to you. You may download the Materials for your internal use only on a single computer or you may network the Materials only on your internal intranet, which is owned, leased or solely controlled by you. Except as otherwise expressly permitted under statutory proprietary law or under these Terms of Use, no copying, redistribution, retransmission, publication or commercial exploitation of downloaded Materials will be permitted without the express written permission of Vaisala and the third party owner.In the event of any permitted copying,redistribution or publication of the Materials, no changes in or deletion of author attribution, trademark legend or copyright notice shall be made, and the integrity of this Site shall be preserved.
You shall not upload, post or otherwise make available on this Site any item protected by copyright, trademark or other proprietary right without the express permission of the owner of the copyright, trademark or other proprietary right and the burden of determining that any item is not protected by such proprietary rights rests with you. You shall be solely liable for any damage resulting from any infringement of copyrights, trademarks or other proprietary rights, or any other harm resulting from such availability. By? providing items to any public area of this Site, you automatically grant, or warrant that the owner of such item has expressly granted to you, the royalty-free, worldwide, perpetual, irrevocable, non-exclusive right and license to use, in any manner,reproduce, modify, adapt, publish, display,translate and distribute such material(in whole or in part) and/or to incorporate it in other works in any form, media or technology now know or hereafter developed. You also permit any other user of this Site to access, view,store or reproduce the item for that user's personal use on a single computer. You grant Vaisala the right to edit, copy display,publish and distribute any item made available on this Site by you.
The foregoing provisions of this Section are for the benefit of Vaisala, its subsidiaries, affiliates and its third-party content providers and licensors and each shall have the right to assert and enforce such provisions, directly, against you or on its own behalf. You acknowledge that Vaisala, its parent, its subsidiaries, affiliates and third-party content providers and licensors assume no responsibility or liability for your actions or activities that are inconsistent with the restricted uses recited herein.

1. YOU EXPRESSLY AGREE THAT USE OF THIS SITE IS AT YOUR SOLE RISK. THIS SITE, AND THE CONTENTS THEREIN, ARE NOT GUARANTEED TO BE UNINTERRUPTED OR ERROR FREE; NOR IS ANY WARRANTY PROVIDED AS TO THE RESULTS THAT MAY BE OBTAINED FROM USE OF THIS SITE, AND THE CONTENTS THEREIN,OR AS TO THE ACCURACY OR RELIABILITY OF ANY INFORMATION, SERVICE OR MERCHANDISE PROVIDED THROUGH THIS SITE OR THAT THIS SITE IS FREE FROM ANY CLAIMS OF INFRINGEMENT. NO ORAL OR WRITTEN INFORMATION OR ADVICE GIVEN BY VAISALA, its AGENTS OR EMPLOYEES SHALL CREATE ANY WARRANTY.
2. THIS SITE IS PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS AND WITHOUT ANY WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, WARRANTIES OF TITLE OR NON- INFRINGEMENT OR IMPLIEDWARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, OTHER THAN THOSE WARRANTIES WHICH ARE IMPLIED BY AND INCAPABLE OF EXCLUSION, RESTRICTION OR MODIFICATION UNDER APPLICABLE LAW. ADDITIONALLY, THERE ARE NO WARRANTIES AS TO THE RESULTS OBTAINED FROM THE USE OF THIS SITE AND THE CONTENTS HEREIN. THE INFORMATION OR CONTENTS OF THIS SITE SHOULD BE USED BY YOU ONLY AS AN INFORMATIONAL SOURCE AND SHOULD NOT SERVE AS THE SOLE FACTOR IN OR BASIS FOR ANY DECISION, INFORMATION OR CONTENTS. THE INFORMATION OR CONTENTS OF THIS SITE ARE INTENDED TO SOLELY PROVIDE GENERAL GUIDANCE ON MATTERS OF INTEREST FOR YOUR USE AND YOU ACCEPT FULL RESPONSIBILITY FOR ITS USE. WHILE EVERY EFFORT IS MADE TO ENSURE THE CORRECTNESS AND COMPLETENESS OF THE INFORMATION OR CONTENTS CONTAINED HEREIN, YOU ACKNOWLEDGE THAT VAISALA DOES NOT PROMISE OR GUARANTEE THAT THE INFORMATION OR CONTENT CONTAINED HEREIN IS CORRECT,COMPLETE, OR ACCURATE.
3. IN NO EVENT WILL VAISALA OR ANY PERSON OR ENTITY INVOLVED IN CREATING, PRODUCING OR DISTRIBUTING THIS SITE, OR THE CONTENT INCLUDED THEREIN, BE LIABLE IN CONTRACT, IN TORT (INCLUDING FOR ITS OWN NEGLIGENCE) OR UNDER ANY OTHER LEGAL THEORY (INCLUDING STRICT LIABILITY) FOR ANY DAMAGES,INCLUDING WITHOUT LIMITATION, DIRECT, INDIRECT, INCIDENTAL, SPECIAL, PUNITIVE, CONSEQUENTIAL OR SIMILAR DAMAGES, INCLUDING WITHOUT LIMITATION, LOST PROFITS OR REVENUES, LOSS OF USE OR SIMILAR ECONOMIC LOSS, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SITE. YOU HEREBY ACKNOWLEDGE THAT THE PROVISIONS OF THIS SECTION SHALL APPLY TO ALL ASPECTS REGARDING THE USE OF THE CONTENTS OF THIS SITE. APPLICABLE LAW MAY NOT ALLOW THE LIMITATION OR EXCLUSION OF LIABILITY OR INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.

Your right to use any of this Site may be subject to immediate termination by Vaisala if your use of this Site is inconsistent with the Terms of Use recited herein or if you misappropriate, misuse or infringe any of the Materials and/or the associated proprietary interests or rights of Vaisala or any third party.You are free to discontinue your use of this Site at any time.All Material is and shall remain the sole and exclusive property of Vaisala. Your right to use such Material is only authorized for the purposes stated herein, and you may store the Material during your continued and uninterrupted use of this Site; however, you may not store for future use such Material beyond your termination of access and use of this Site, nor may you develop a library of such Material during your use of this Site or after your termination of use of this Site.

These Terms of Use incorporate by reference the following terms and/or statements:

• Privacy Practice Statement
• Governing Laws Terms
• Trademark Use Terms
• Copyright Use Terms
• Permission to Link Terms
• Third-Party Link Terms
• Contact Information

Vaisala Inc. (Vaisala) trademarks, service marks, logos and/or trade names (collectively, marks) identify Vaisala products and services, and let the public know the source of those products and services.You may make fair use of our trademarks in advertising and promotional materials, and in referring to our products and services (for example, in a magazine article) without our permission, provided you follow standard trademark usage practices and provide proper attribution. In the event you wish to use the marks for linking, please refer to Vaisala's Permission to Link Terms.
You may not use Vaisala marks, whether design or word marks, in the following ways:

• in a non-Vaisala product or service name or publication title; or
• in, as, or as part of your own trademarks, service marks, logos or trade names; or
• to identify non-Vaisala products or services; or
• in a manner likely to cause confusion; or
• in a manner that implies inaccurately that Vaisala sponsors, endorses,or are otherwise is connected with your own activities, products,and services; or
• in a manner that distorts, changes or modifies the marks so as to affect its registered U.S. and international trademark status or in a manner detrimental to the enforcement of U.S. and international trademark protections; or
• in a manner that disparages or adversely impacts Vaisala or any of its parent, subsidiary, affiliate, associate or related business entities, or any of its directors, officers, employees or agents thereof, or its Site, products or services.

Your use of any marks constitutes your acceptance of the terms of this authorization. Vaisala disclaims any warranties or guarantees, whether express or implied, including warranties against infringement with regard to the marks and their use, and the marks are provided "ASIS." Further, Vaisala reserves the right, for any reason and without notice,at any time, to terminate this authorization or modify the terms recited herein. Any other uses require written permission from Vaisala. Please make such requests by contacting Vaisala as specified in this Site. Vaisala will evaluate your request as soon as possible.
In the event any other trademarks appear on this Site that are not Vaisala marks, you have no authorization to use, in any manner,or link nor does Vaisala grant you any rights,explicitly or implied,to use any or to link to such trademarks.
Additionally, Vaisala has rights to certain registered domain names in which it has a proprietary interest.The domain names are subject to the same restrictions as recited above and in the linking terms.

When you use Vaisala marks, please include an appropriate notice attributing the marks to Vaisala.

Vaisala Inc. (Vaisala's) Site contains copyrighted material that includes, but is not limited to, screen shots, documents, data, graphical displays, pictures, digital images, text and computer code. These materials are owned by Vaisala or its suppliers, and your download, access or use of these materials from this Site does not transfer any rights, title or interest, whether expressed or implied,in the materials or the copyrights held in the materials, except as authorized herein, to you. Vaisala disclaims any warranties or guarantees, whether express or implied,including warranties against infringement with regard to the materials and their use, and the materials are provided "AS IS." Further Vaisala reserves the right for any reason and without notice, at any time, to terminate this authorization or modify the terms recited herein.

Vaisala hereby authorizes you to view, copy, download, and print Vaisala materials that are available on this Site, subject to the following conditions:

• The materials may be used solely for your business or intranet requirements for informational purposes, and for no other purposes, including commercial exploitation or distribution, either independently or in combination with or integrated in other products.
• The materials may not be modified, altered,changed, translated or edited nor may you create derivative works thereof, except where otherwise stated.
• The following copyright notice and permission notice must appear in each document: "Copyright @copy 2010 Vaisala Inc. (Vaisala). All rights reserved. Protected by the copyright laws of the UnitedStates and International Treaties and Authorized for Use by Vaisala."
• Copyright or any other proprietary notices may not be removed,deleted or altered in any manner.

You may not reproduce, copy, or redistribute the design or layout of this Vaisala Site, individual elements of any of this Site design, or Vaisala logos, service marks or trademarks without the express written permission of Vaisala, or where otherwise stated.

Reproduction, copying, or redistribution for commercial purposes (external to your intranet) of any Materials on this Site is strictly prohibited without the express written permission of Vaisala.

This Site (excluding linked sites)is controlled by VaisalaInc. (Vaisala) from its offices within the state of Colorado, United States of America. It can be accessed from all 50 states, as well as from other countries around the world. As each of these places has laws that may differ from those of Colorado, by accessing this Site both you and Vaisala agree that the statutes and laws of the state of Colorado, without regard to the conflicts of laws principles thereof, will apply to all matters relating to use of this Site.
You and Vaisala also agree and hereby submit to the exclusive personal jurisdiction and venue of the Superior Court of Denver, Colorado and the United States District Court for Colorado with respect to such matters. Vaisala makes no representation that materials on this Site are appropriate or available for use in other locations, and accessing them from territories where their contents are illegal is prohibited. Those who choose to access this Site from other locations do so on their own initiative and are responsible for compliance with local laws. You shall adhere to U.S. Export Administration Laws and Regulations, and to International Internet Laws, Rules and Regulations.

Vaisala Inc. (Vaisala) welcomes a link from your web page to Vaisala's Site. The following describes how you may link and the process for achieving such interaction between this Site and your link. Except as Vaisala may authorize elsewhere, non- Vaisala sites may link to this Site only by using Vaisala's logo, trade name, trademark or URL - "www.vaisala.com" (collectively, Link Elements). By using these Link Elements, you agree to be bound by the following Terms.

1. Vaisala grants you a non-exclusive, non-transferable right and license to display the Link Elements on your site only for the purposes of establishing a link to this Site.You may display one or more Link Elements on your site provided that when a user clicks on your choice of a Link Element, the user always links to this Site, except where otherwise authorized. Further,you are not permitted to change or modify the Link Elements in a manner that is detrimental to the enforcement of U.S. and international trademark and copyright interests and title. Further, you may not eliminate, remove,alter or modify any advertising placed ?on this Site or any affiliated Vaisala Sites.
2. The link elements are not to be considered or to be construed, either explicit or implied, as any endorsement, agency or affiliate relationship, strategic alliance or any other legal or business relationship and are only provided for the convenience of the user at your site.
3. You may not use the link elements for or in the encouragement of unlawful or illegal purposes, or use or display the link elements in a disparaging, derogatory, detrimental or adverse manner, whether or not related to Vaisala or Vaisala's Sites.
4. As a result of your use of these Linking Elements, you are not granted any other license or right in the trademark or copyrights held and owned by Vaisala in these Linking Elements and any related materials. Further, no license, either expressed or implied, is granted to any other intellectual property, including those properties associated with this Site, and any or all of the contents, therein.
5. Vaisala, at any time without notice, reserves the right, for any reason and in its sole discretion, to terminate or modify immediately, Vaisala's Terms for Linking. Upon termination, you shall promptly remove the link elements from your site. Vaisala disclaims any warranties or guarantees, whether express or implied, including warranties against infringement, with regard to the link elements and their use, and the contents of this Site. The content of this Site is provided "AS IS".
6. Vaisala reserves the right to pursue any action against any use that does not conform to these terms or infringes any Vaisala intellectual property right or any or other interest,or violates any other applicable laws related to, arising from or associated with the link, Linking Elements, Vaisala or this Site.

In the event there are any links provided in this Site to other third-party sites,which let you leave this Site, you acknowledge by your use of such links that Vaisala provides such links for your convenience only and makes no representations whatsoever about such third-party sites.These non-Vaisala linked sites are independent from Vaisala and Vaisala is not responsible for the contents of any linked site or any link contained in a linked site, or the operation, performance reliability of such site or the contents therein or any changes or updates to such sites. The inclusion of any such link does not imply endorsement, either expressly or implied, by Vaisala of the linked site. The linking to and use of such site is completely your responsibility and any liabilities or risks associated with such linking or use of the Site, and the contents therein, shall be assumed totally and completely by you. Vaisala assumes no liability or risk for any damages, either direct or consequential, or claims as a result of such linking and use of this Site and you will hold Vaisala completely harmless with respect to any claim made or action commenced as a result of such linking to or use or the site and any contents therein.