Results 1 - 10 from 569 for land surface in 0.389 sec.

Land-Atmosphere-Ice-Snow Interactions in the High Arctic
Simmonds Ice Cap changes (1999-2002) Pictures and first results from the 2003 field season Land-Atmosphere-Ice and Snow Interactions in the High Arctic: the Hazen Plateau, Ellesmere Island The ... and Simmonds Ice Caps. Project Summary - In this project, we are investigating interactions of the land surface, atmospheric processes and snow and ice-covered surfaces over an extensive upland region the ...
www.geo.umass.edu

Ecosystems, Land
Wetland: Those ecosystems where the water table is at, near, or above the land surface for a significant part of most years and dominated by hydrophytic vegitation and biota. ... meadows, and perched bogs. Wetlands also include seasonally flooded basins, playas, or potholes with no surface water outflow. Wetlands do not include shallow water areas with submerged aquatic vegitation falls (see ...
www.hq.nasa.gov

Methods of Developing Sources of Surface Water
Depression springs are formed when the land surface dips and makes contact with the water table in permeable material. Yield will be ... discussed in the technical notes on planning. Table 1 compares the various methods of developing surface water discussed in this technical note. Table 1. Summary of Methods of Developing Sources of ...
lifewater.org

NRDC: Forest Facts
Half of the forests that originally covered 48 percent of the Earth's land surface are gone. Only one-fifth of the Earth's original forests remain pristine and undisturbed. In ... managed forests. As of 2004, 595 certificates, representing more than 100 million acres of forest land worldwide, had been issued by certifiers accredited by the Forest Stewardship Council, a group that ...
nrdc.org

Land and sea
Global Programme of Action for the Protection of the Marine Environment from Land-Based Activities (GPA). The primary goal of the GPA is to assist governments to take ... coastal ecosystems is affected mainly by point sources and by storm-related drainage from the land surface, whether discharged directly into coastal areas or carried there by rivers. International cooperation UNEP's ...
ourplanet.com

Helcom : - LAND
Amendments to Annex III "Criteria and Measures Concerning the Prevention of Pollution from Land-Based Sources" of the 1992 Helsinki Convention 28E/4 2007-11-15 13:00:00.0 Limitation of ... oil refineries 23/8 2002-03-06 13:00:00.0 Reduction of discharges and emissions from the metal surface treatment 23/7 2002-03-06 13:00:00.0 Reduction of emissions and discharges of mercury from ...
www.helcom.fi

Climate Ark: Trend in global average surface temperature
Change Search Internet News Links Site Climate Ark: Trend in global average surface temperature 14. The figure shows the combined land-surface air and sea surface temperatures (degrees Centigrade) 1861 to 1998, relative to the average temperature between 1961 and 1990 .The mean global surface temperature has increased by about 0.3 to 0.6C since the late 19th century and by ...
climateark.org

Land & Food: poisoned soils, Tom the survivor, POPs, problem down under
In Australia, approximately 30% of our fertile land has been lost in 20 years. This disaster has been caused by two main factors. First, ... that occurs naturally in the soil. When the water reaches the surface, it evaporates, leaving a salty residue. This makes the land rock hard and useless. Thankfully, the Australian government is backing many ...
grida.no

Land Use Issues
BioScience, 36, 368-373. Lugo, A. E., M. J. Sanchez, and S. Brown, 1986: Land Use and Organic Carbon Content of Some Subtropical Soils. Plant and Soil, 96, 185-196. ... . Springer-Verlag. Myre, G. and A. Myre, 2003: Uncertainties in Radiative Forcing Due to Surface Albedo Changes Caused by Land-use Changes. J. Climate, 16, 1511-1524. Human-induced soil degradation, technical atlas, ...
www.meteor.iastate.edu

Land Use Issues
Course Humans have transformed a large fraction of highly productive land to other uses. Related changes in solar energy absorption, surface water recycling, erosion, and ecosystem services have been touched upon in ... a key to sustainability. Objectives To examine patterns of land use and understand the role of land use in global change. To explore how land use changes relate to changes of local, ...
www.meteor.iastate.edu More from this site



The results are filtered
View all results for land surface