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An environmental gradient, or climate gradient, is a change in abiotic (non-living) factors through space (or time). Environmental gradients can be related to factors such as altitude , depth, temperature , soil humidity and precipitation .
A gradsect or gradient-directed transect is a low-input, high-return sampling method where the aim is to maximise information about the distribution of biota in any area of study. Most living things are rarely distributed at random , their placement being largely determined by a hierarchy of environmental factors.
The environmental lapse rate is the decrease in temperature of air with altitude for a specific time and place (see below). It can be highly variable between circumstances. Lapse rate corresponds to the vertical component of the spatial gradient of temperature.
A major leak of 27,000 U.S. gallons (100,000 liters) of fuel in January 2014 drew attention from both the Environmental Protection Agency (EPA) and the Hawaiʻi Department of Health (DOH), which led to the Navy entering into an agreement (formally titled the "Administrative Order on Consent," or AOC) to enhance monitoring for leaks and build ...
CNN quote Coast Guard Petty Officer Ashley Butler as saying that "oil was leaking from the rig at the rate of about 8,000 barrels (340,000 US gallons; 1,300 cubic metres) of crude per day." [ 30 ] 100,000 US gallons (380,000 litres) of dispersants are pre-authorized by the United States Environmental Protection Agency (EPA) and placed in ...
A thermocline (also known as the thermal layer or the metalimnion in lakes) is a distinct layer based on temperature within a large body of fluid (e.g. water, as in an ocean or lake; or air, e.g. an atmosphere) with a high gradient of distinct temperature differences associated with depth.
On June 16, a second containment system connected directly to the blowout preventer became operational carrying oil and gas through a subsea manifold to the Q4000 service vessel with a processing capacity for about 5,000 barrels (210,000 US gallons; 790 cubic metres) of oil per day. Oil and gas are both burned on Q4000 in a clean-burning system ...
Environmental systems analysis (ESA) is a systematic and systems based approach for describing human actions impacting on the natural environment to support decisions and actions aimed at perceived current or future environmental problems. Impacts of different types of objects are studied that ranges from projects, programs and policies, to ...