Add-on:Blue Marble NG
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- | To allow us to keep providing services such as this web site, and delivering imagery to World Wind please consider making a [[Donations|donation]] to help pay the monthly server bill of $1,000,000. | + | To allow us to keep providing services such as this web site, and delivering imagery to World Wind please consider making a [[Donations|donation]] to help pay the monthly server bill of $299. |
[[Category:Add-ons]] | [[Category:Add-ons]] |
Revision as of 00:42, 31 October 2005
Blue Marble NG | |
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Blue Marble New Generation
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Developer | Nowak/Chris Maxwell |
Latest release | 0.1 / 2005-10-14 |
License | undefined |
Web site | Add-On homepage |
This Add-On is no longer updated, World Wind 1.3.3 includes Blue Marble Next Generation by default.
Contents |
Introduction
Blue Marble: Next Generation offers greater spatial detail of the surface and spans a longer data collection period than the original. The original Blue Marble was a composite of four months of MODIS observations with a spatial resolution (level of detail) of 1 square kilometer per pixel. Blue Marble: Next Generation offers a year's worth of monthly composites at a spatial resolution of 500 meters. These monthly images reveal seasonal changes to the land surface: the green-up and dying-back of vegetation in temperate regions such as North America and Europe; dry and wet seasons in the tropics, and advancing and retreating Northern Hemisphere snow cover.
Blue Marble: Next Generation improves the techniques for turning satellite data into digital images. Among the key improvements is greater detail in areas that usually appear very dark to the satellite (because a large amount of sunlight is being absorbed), for example in dense tropical forests. The ability to create a digital image that provides great detail in darker regions without 'washing out' brighter regions, like glaciers, snow-covered areas, and deserts is one of the great challenges of visualizing satellite data. The new version also improves image clarity, and gives highly reflective bodies of water, such as salt lakes, a more realistic appearance.
Download & Installation
- Double click the downloaded file named 'WorldWind_1.3_BlueMarbleNG_0.1' and follow the on-screen instructions.
Usage
- Run NASA World Wind.
- Select 'Layer Manager' from the toolbar at the top of the screen.
- In the 'Layer Manager' click the small arrow next to 'Images' to open the sub menu.
- In the 'Layer Manager' click the square boxes next to 'Blue Marble Tiled (1km per pixel)' and 'High Resolution Imagery' to untick them.
- To Change the imagery to a different month in the 'Layer Manager' click the small arrow next to 'Blue Marble NG' to open the sub menu, repeat this with 'BMNG topo+bathy' to display a list of months, to choose a month click in the center of the small circle next to the month you wish to view.
Data Sources and Credit
- Blue Marble: Next Generation was produced by Reto Stockli, NASA Earth Observatory (NASA Goddard Space Flight Center).
- NASA’s Earth Observatory.
- Data processed for NASA World Wind by Chris Maxwell at NASA Ames Research Center.
- Add-On produced by Nowak of WorldWind Central.
- Data served by WorldWind Central.
Links
Donate to WorldWind Central
To allow us to keep providing services such as this web site, and delivering imagery to World Wind please consider making a donation to help pay the monthly server bill of $299.