In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project of the National Water-Qua

DataONE2017-04-12 更新70

Results of lake water analysis from Kelbra Reservoir in Saxony-Anhalt during ...

水质监测

水生态评估

Kelbra Reservoir is a shallow lowland reservoir (approx. 35 Mio. m³ volume; max. depth 5,5 m, mean depth 3.5 m; surface area 600 ha), which was constructed 1962-1966 for flood...

B2FIND40

SALMON R NR HYDER AK

水情监测

水生态评估

Timeseries data from \'SALMON R NR HYDER AK\' (ism-aoos-gov_usgs_waterdata_1500)cdm_data_type = TimeSeriesVARIABLES:time (seconds since 1970-01-01T00:00:00Z)latitude (degrees_north)longitude (degrees_

ERDDAP70

WFD Cycle 1 Ecological Element Classification Confidence and Certainty

水生态评估

水质管理决策支持

Water framework directive Cycle 1 element classification confidence and certainty for surface water bodies in England. Attribution statement: © Environment Agency copyright and/or database right...

data.gov.uk2025-07-25 更新40

Pigments measured on water bottle samples at station TT043_11-1

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