Blog: Landsat With the help of satellite images fifth and sixth grade students at Mr. Tim Blum’s geography class (photo below) at the UW Lab School got a birds-eye view of how humans have impacted or modified their environments (31 January 2011). Images acquired by satellites decades apart showed cleared forests, irrigated crop fields in the middle of the deserts, altered landscapes (new roads and water bodies), and urban growth. As part of the Earth Observation Day (EOD) activities, WyomingView coordinator Ramesh Sivanpillai described the utility of images acquired by satellites are useful for monitoring changes on earth’s surface. For example, Landsat images acquired in 2000 (bottom left) and 2009 (bottom right) shows the newly constructed roads (linear features), drilling pads (square features at the end of the roads), and ponds (in different shades of blue) for an area within the Powder River Basin.
lapse: Landsat Satellite Images of Climate Change, via Google Earth Engine TIME and Space | By Jeffrey Kluger Editors note:On Nov. 29, 2016, Google released a major update expanding the data from 2012 to 2016. Read about the update here. Spacecraft and telescopes are not built by people interested in what’s going on at home. Arc2google: Sync Google Earth - ArcGIS 10 Arc2Google is an additional extension for ArcGIS-ArcMap made by Hussein Nasser which allows ArcMap users to view Google Earth / Google Maps in a dockable window, in the same area with the view extents in ArcMap canvas and can be synchronized. With this Arc2Google, whenever a user to zoom in / out in ArcMap, Google Earth / Google Maps on dockable window will adjust the same location as the display in ArcMap. To facilitate your understanding of the functions of the ArcGIS extensions, please see the video below. Now, this Arc2Google been updated and now available for ArcGIS 10.
Trends in Carbon Dioxide Calendar | People | Publications Earth System Research Laboratory Global Monitoring Division Global Greenhouse Gas Reference Network Trends in Atmospheric Carbon Dioxide OpenStreetMap Seminars on Science Key Science Concepts The Sun is the primary source of energy for Earth's climate system. The Earth's energy is in balance, or equilibrium, when Earth emits the same amount of energy as it absorbs. The climate system is dynamic and has many interrelated components. A change in any one component can influence the equilibrium of the system and result in climate changes.
Natural Earth A primer on pH What is commonly referred to as acidity is the concentration of hydrogen ions in an aqueous solution. Figure 1. The pH scale by numbers Figure 2. The percent change in acidity with falling pH values is calculated a ... LINK FLORESTAL - FOREST GIS
The Big Apple's Mayor Makes A Very Scary Video : Krulwich Wonders... I didn't know what to make of this when I saw it. I live in Manhattan, in a city where people bike, take buses, subways, trains, live and work in towers where they share elevators, share water, share electricity. I thought my town is setting the example for energy-efficient, communal living. And then, the guy who runs the place, Mayor Michael Bloomberg, releases a study — including (see below) a shocking video — that says, you think New York is great on energy?
Permet d'accéder aux catalogues Landsat, Aster, MOdis, Terra Look, EO et également quelques capteurs aériens. by karine Apr 15