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Disasters

Different kinds of disasters, which may be natural or technological, can have hazardous effects on life of people. Some of these disasters are hurricanes and similar weather events, volcanic eruptions or activities, earthquakes, debris flows, landslides, urban interface or wild land fires, oil spills, floods, space weather storms, etc.

Within the United States itself, a large number of disasters causes severe damage of lie property. The damage totals up to about $20 billion every year. Therefore, it is important to have an earth observation system, which is able to detect and forecast disasters. Moreover, this system should be capable enough to the different kinds of disasters mentioned above.

The world of NASA World Wind is completely a three dimensional interactive globe. You can get started with it from the download section. NASA World Wind allows you to zoom from the satellite altitude on any place on the Earth. By controlling the Land Sat satellite images and the Topography Mission Data, it will enable you to experience the earth terrain in a three dimensional form. You can virtually visit any place on earth- the Andes, Alps, African Sahara, The Grand Canyon, etc.

Let us see briefly the different features of the NASA World Wind:

Creating movies is a graphics intensive and memory intensive process. Before you start recording movies, make sure that not all multiple large applications are running on your machine during recording. You will have to disable both pop up blockers and screen savers.

Step to record movies are as follows:

1] From tools menu, choose 'movie maker'. Moviemaker dialog box will appear

2] From compression format selector, select desired compression format for the movie.

In case users want movie formats other than Quick time or Windows media video, check 'advanced ' checkbox and then select the format. In case you desire to choose another movie format, standard AVI compression is only available. As AVI file formats are uncompressed, it will result only in large files.

Is Virtual Earth going to include other regions or countries?

The makers of Virtual Earth are constantly evaluating geographic enhancements. Although it is not possible to comment now on specific countries, the existing geographic imagery and data will be improved by adding new regions and countries.

Is there any difference between Live Search Maps and virtual Earth?

Live Search maps are an online mapping and local search tool and enables users to discover, learn, and explore a particular location. Virtual Earth platform is a set of services giving rich imagery, quality geospatial data and cutting edge technology that helps organizations to visualize data and give immersive experiences to end users

The condition for the earth observation systems dedicated or the weather forecasting can be called as the beset observing systems in the United States. The National Research Council reported that this system has evolved over the last 40 years. It has been transferred from the hands of government to the public sector. The public sector is a combination of the Federal State, regional State governments or the Local governing bodies, private organizations and companies, and academia.

If you want to use your computer for searching various places on Earth then you should think of installing World Wind software. With the help of NASA World Wind, you can tour the whole world. You will also be able to view historical monuments and other famous cities such as Paris and New York. Popular structures such as Eiffel tower and Empire state building are just a mouse click away. Not only you will be able to see any part of planet Earth but also you can virtually visit other planets. Although NASA World Wind is used mainly in colleges and schools, anyone who has interest in viewing Earth terrain can download this software.

Google Earth provides a number of useful features and tools. Still it is trying to improve further. In addition to viewing imagery for Earth, you can also view astronomical images with the help of the Sky Mode feature.

Google Earth makes use of the DEM (digital elevation model) data. This data was collected by NASA's Shuttle Radar Topography Mission (SRTM). Because of this, it can provide 3D images of Grand Canyon or Mount Everest from November 2006, Google Earth has improved the 3D views of most mountains like Everest. This was done by using the supplementary DEM data, which it used for filling up the gaps, which remain in the SRTM coverage.

Google earth is one of the most sophisticated 3D earth viewer software, easy to understand. However, you may find to difficult if there are some discrepancies while installing or upgrading the software.

How to use the deactivate feature for installing Google Earth pro or Google Earth plus on a 3rd machine?

The license key of every Google Earth subscription is limited to 2 installations per user. Deactivation feature allows users to remove activation of their license key from 1 machine and then transfer it to the third. To use deactivation feature you will have to download the recent version of Google Earth. After you install the recent version first log in and then choose the option 'Deactivate Google Earth X license' where X is the version of your Google Earth. Then you will be able to see the options listed below:

Measure tool: It is used to measure data in your computer. If you are thinking of using this tool, then you will have to click on the measure tool and the cursor changes. After clicking on the tool, measuring will begin as soon as you click on Servir Viz terrain. You can stop measuring by moving the mouse cursor to another location or point and then click again to stop measuring. For creating the measurement line, you will have to again click and the results will vanish.

Check the server status page to ensure that there are no server side problems.Issues related to downloading tiles and imagery:Issues related to downloading tiles and imagery:

What is the use of download Monitor?

NASA World Wind contains a download monitor 1.3, which is very useful to diagnose problems.

Why the monitor screen is showing the message ' Problems connecting to server. Try again in 2 minutes?

There are several possible reasons:

1] The server may be down. You can try after some time.

2] There is a high probability that you are behind a blocking firewall/proxy. In that case, you can either go for configuring a part of remapper or look for out an admin.