The face of GIS and Geospatial education has changed dramatically over the past few years, with online courses being offered in numerous subjects, ranging from GIS fundamentals to Spatial Analytics and Geodesign. What is more phenomenal is that these courses reach out to all corners of the earth, making a GIS/geospatial education a possibility for almost everyone on the planet.
Posts Tagged ‘NASA’
Eric Webster, vice president of Exelis Weather Systems, talked recently about the company’s efforts along with NASA Langley Research Center to evaluate an Exelis instrument to determine its effectiveness for measuring CO2 from space.
Mid-January 2013 air quality proved to be dangerous to the health of Beijing residents and those of many other cities in China. Authorities warned people to stay indoors as the nation faced one of the worst periods of air quality in recent history. Factories were government-ordered to scale back emissions. According to news reports, hospitals experienced more than 20 to 30 percent increase in patients complaining of respiratory issues.
According to NASA Earth Observatory, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite acquired these natural-color images of northeastern China on January 14 (top) and January 3, 2013. The top image shows extensive haze, low clouds, and fog over the region. The brightest areas tend to be clouds or fog, which have a tinge of gray or yellow from the air pollution. Other cloud-free areas have a pall of gray and brown smog that mostly blots out the cities below. In areas where the ground is visible, some of the landscape is covered with lingering snow from storms in recent weeks. (Snow is more prominent in the January 3 image.)
High resolution imagery of sub-meter – less than 40 inches – is only available from GeoEye, DigitalGlobe, Astrium Geo, and ImageSat. It is what the stuff of Google is made of. GeoEye and DigitalGlobe represent approximately 75% of this market, and 2/3 of their revenue is tied to the U.S. government. There are lots of free, government sources of satellite imagery like Landsat, and weather satellites from NASA and NOAA, but these are not high-resolution satellites that can zoom in on your house, or support 3D modeling for engineering and virtual reality-type applications.
Read about why U.S. commercial satellite imagery is important:
The mountains of northeastern Oman are rugged, dry, and as much as 2,500 meters (8,200 feet) above sea level. Yet millions of years ago, parts of these mountains were at the bottom of the sea. Actually, they were beneath it.
According to several top scientists, the March heat wave that has shattered records across a wide swath of the U.S. bears some of the hallmarks of global warming.
In email conversations, those same scientific researchers who specialize in studying the role climate change plays in influencing individual extreme events — a burgeoning field known as “extreme event attribution” — said global warming may have made March’s soaring temperatures more likely to occur, although they add that natural variability has played a key role as well.
The Change Matters viewer from Esri can show how your area has changed over a given time period, say for instance, from 1988 to 1990. Las Vegas is known for its phenomenal sprawl over the past four decades. Time-lapseimages from the Landsat earth monitoring satellites reveal in false-color, multispectral imagery how urban sprawl has stretched out from Nevada’s “Sin City” over the past four decades.
This latest video was posted by NASA in honor of the 28th anniversary of Landsat 5’s launch on March 1, but the pictures actually go back to 1972, when the Landsat program began.
The Open Geospatial Consortium (OGC) calls for participation in a major interoperability testbed, OWS-9. OWS-9 builds on the outcomes of prior OGC initiatives.
Responses are due by 5 pm EST on April 6, 2012.
A bidders’ teleconference will be held on March 9, 2012. More information at the URL below.
The Point of Contact is Nadine Alameh: email@example.com.
The OWS-9 sponsors are:
- AGC (Army Geospatial Center, US Army Corps of Engineers)
- CREAF-GeoViQua-EC (CREAF is the European Center for Research in Ecology and Forestry Applications)
- FAA (US Federal Aviation Administration)
- GeoConnections – Natural Resources Canada
- Lockheed Martin Corporation
- NASA (US National Aeronautics and Space Administration)
- NGA (US National Geospatial-Intelligence Agency)
- USGS (US Geological Survey)