United States Geological Survey YearbookThe Survey, 1990 - Geology |
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Page 1
... drought . Others face risks once every century or more for major earth- quakes , such as those in Alaska , California , and the Mississippi Valley area , and for large volcanic eruptions , such as those in the Pacific Northwest and ...
... drought . Others face risks once every century or more for major earth- quakes , such as those in Alaska , California , and the Mississippi Valley area , and for large volcanic eruptions , such as those in the Pacific Northwest and ...
Page 37
... droughts that occurred hundreds of years ago . Surrounded by the roar of fast- moving presses and a bustle of activity , as sheet after sheet of colorful maps roll off the presses , visitors see first hand how the thou- sands of maps ...
... droughts that occurred hundreds of years ago . Surrounded by the roar of fast- moving presses and a bustle of activity , as sheet after sheet of colorful maps roll off the presses , visitors see first hand how the thou- sands of maps ...
Page 57
... drought . Historic Perspective Droughts are a recurring feature of California's climate . To help put the current drought in perspective , hydrologists from the USGS water resources office in Sacramento , in cooperation with DWR ...
... drought . Historic Perspective Droughts are a recurring feature of California's climate . To help put the current drought in perspective , hydrologists from the USGS water resources office in Sacramento , in cooperation with DWR ...
Page 58
... drought of 1928-37 . Impact of the Drought Because of the recurrent nature of droughts in California , considerable effort has been made to lessen their effects . Water sup- plies have been developed and are managed to provide ...
... drought of 1928-37 . Impact of the Drought Because of the recurrent nature of droughts in California , considerable effort has been made to lessen their effects . Water sup- plies have been developed and are managed to provide ...
Page 59
... drought restrictions . Southern Califor- nia was little affected during the first 3 years of the drought because of diverse sources of water supply - northern California , the east- ern Sierra Nevada , and the Colorado River basin . In ...
... drought restrictions . Southern Califor- nia was little affected during the first 3 years of the drought because of diverse sources of water supply - northern California , the east- ern Sierra Nevada , and the Colorado River basin . In ...
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activities Administration Alaska Arctic areas Assistant atrazine Award Baikal Bldg Board Bureau cartographic data Chief Hydrologist City City of w coal coastal Commission contamination cooperative Coordination County Denver Federal Center Department of Public Development disaster Division Chief drought earth science earthquake Environmental eruption Federal agencies field geologic map geologists geophysical ground water ground-water Hurricane Hugo hydrologic IDNDR Information Systems Interior investigations Island Lake Lake Baikal land lava located Loma Prieta earthquake Loudoun County Management Menlo Park ment miles mineral deposits mineral resources National Center National Mapping National Water NAWQA Office percent Planning production Puerto Rico Redoubt volcano Regional Reston River basin rock scale scientific scientists seismic Service spatial data storage storm studies surface tion Transportation U.S. Department U.S. Geological Survey U.S. Virgin Islands United users USGS Water Conservation District Water District water quality Water Resources Water-Quality Assessment