analyzing usgs site files using olap ilya zaslavsky, june 12, 2007
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Analyzing USGS Site Filesusing OLAP
Ilya Zaslavsky, June 12, 2007
Pseudo-Mapswith OLAP:
the USGS Cube without time dimension
US Map of USGS Observations
Antarctica
Puerto Rico
Hawaii
Alaska
US Map of USGS Observations – by ReportedTypeCount
US Map of USGS Observations – by Mean Available Data
US Map of USGS Observations – by Max Period of Record
US Map of USGS Observations – by Mean Period of Record
USGS Observations: Californiaby Mean Available Data
USGS Observations: Californiaby Available Data Total
Available Data by Latitude Bands
Alaska
Big IslandMaui Kauai
Corpus Christi
USGS data availability by decades:
the USGS Cube with time dimension
The larger cube (with time dimension):Available data by HUCs by decade
Different types of nutrients by decade: Available Data Total
Some physical properties by decade: Available Data Total
Same without discharge, gage height, temperature and precipitation (the four most common, in that order): Available Data Total