United States Geological Survey YearbookThe Survey, 1985 - Geology |
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Page 2
... change affecting us in recent years has been the greatly expanded use of computers . The automation of spatial data has ... changes in rainfall and irrigation pumping rates . An essential part of the Geological Survey mission has always ...
... change affecting us in recent years has been the greatly expanded use of computers . The automation of spatial data has ... changes in rainfall and irrigation pumping rates . An essential part of the Geological Survey mission has always ...
Page 4
... change , thus slowing the evaluation process . Usually , data prepared and presented in a form to address specific problems do not lend themselves to the consideration of alternatives , and it is time consuming to incorporate new data ...
... change , thus slowing the evaluation process . Usually , data prepared and presented in a form to address specific problems do not lend themselves to the consideration of alternatives , and it is time consuming to incorporate new data ...
Page 13
... the glacier . The speed of calving is high when a glacier terminates in deep water Figure 1. Changes in the length of Columbia Glacier since. 13 Disintegration of the Lower Reach of Columbia Glacier, Alaska, Now Under.
... the glacier . The speed of calving is high when a glacier terminates in deep water Figure 1. Changes in the length of Columbia Glacier since. 13 Disintegration of the Lower Reach of Columbia Glacier, Alaska, Now Under.
Page 14
Geological Survey (U.S.). Figure 1. Changes in the length of Columbia Glacier since 1976 . Upward trend represents advance , downward trend represents retreat . Heavy line is observed behavior of the terminus , averaged over the width ...
Geological Survey (U.S.). Figure 1. Changes in the length of Columbia Glacier since 1976 . Upward trend represents advance , downward trend represents retreat . Heavy line is observed behavior of the terminus , averaged over the width ...
Page 25
... changes in rocks that surround the deposits . The region around a deposit may contain a subtle record of past temperatures that were higher than those associated with the surrounding rocks . This region , in which the rocks may have ...
... changes in rocks that surround the deposits . The region around a deposit may contain a subtle record of past temperatures that were higher than those associated with the surrounding rocks . This region , in which the rocks may have ...
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activities Alaska aquifer areas Assistant Bacillus cereus basins Bureau California cartographic cartographic data base City coal Columbia Glacier Commission contaminants Control Cooperative Denver Department of Public digital cartographic data digital data earthquake energy Environmental eruption Federal agencies Federal Bldg feet fiscal year 1984 flow fluid inclusions geochemical geographic geographic information systems Geologist geophysical ground water ground-water hazards High Plains hydrologic ical image map information systems investigations irrigation Lake land Landsat lava located Loki Patera major Management Mauna Loa million mineral deposits mineral resources models monitoring National Center National Mapping Division Office offshore Parkfield Parkfield earthquake Planning potential production quadrangle radar Regional remote sensing River rocks San Andreas fault scientific sediment Service sources square miles STOP studies sulfur surface Survey scientists Survey's techniques tion topographic maps trends U.S. Geological Survey Volcano Water Conservation District Water District zone