gcmd.nasa.gov Global Change Master Directory (GCMD)
The Global Change Master Directory is a comprehensive directory of information about Earth science data, including the oceans, atmosphere, hydrosphere, solid earth, biosphere and human dimensions of global change. FGDC Clearinghouse Node (NASA).
Keywords: climate change, Radiance, conferences, paleoclimate
physicalgeography.net Geography : Physical Geography
Physical Geography is a sub-discipline of two much larger fields of study - Geography and Earth Sciences. The main purpose of Physical Geography is to explain the spatial characteristics of the various natural phenomena associated with the Earth's...
Keywords: nitrogen cycle, topographic map, physical geography, properties of water, we test directional hypotheses