Folder: Ground Water ( Show all descendants )
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Groundwater Annual Drought Metrics -------------------------------- Percentile Annual Metrics -Total duration below threshold: The number of days of the year where flow percentiles are below the threshold. -Longest Duration below threshold: The longest continuous period in a year where flow percentiles are below the threshold. -Total volume below threshold: The volume of days of the year where flow percentiles are below the threshold. -Largest volume below threshold: The largest volume of a continuous period in a year where flow percentiles are below the threshold. -Minimum percentile: the lowest flow percentile in a year. -------------------------------- Percentile Event Metrics -Total drought volume: Annual...
Spatial variables attributed to 22,283 wells for ground water modeling in the National Drought project. The following files are presented here in csv format: File/Variable Description Units NLCD Land Cover (2001,04,06,08,11,13,16) at well point N/A NLCD_500mbuf Land Cover in 500 meter buffer (2001,04,06,08,11,13,16) pct NLCDYYY: NLCD land cover category at well location. NLCD _YYYY_500mbuf: percent of each NLCD land cover category in 500 meter around well location: NLCD CLASSES: "X11", Open Water "X21", Developed Open Space "X22", Developed Low intensity "X23", Developed Medium intensity "X24", Developed High intensity "X31", Barren "X41", Deciduous forest "X42", Evergreen forest "X43", Mixed forest "X52", Shrub...
This folder contains summaries of droughts based on percentiles estimates of groundwater levels from NWIS and NGWMN for various time periods. It also contains various associated files that were used in assembling and producing this dataset. Additional information regarding NWIS groundwater data can be found here: USGS Groundwater Data for the Nation. More information regarding the NGWMN can be found here: National Ground-Water Monitoring Network (usgs.gov) -------------------------------------- Explanation of file names: The first several pieces are the type of data use to create the file "groundwater_percentiles" After this is the time period of analysis, e.g. "1970-2020" Next is the percentile calculation method,...
This dataset contains groundwater levels data from NWIS and NGWMN in csv files. It also contains various associated files that were used in assembling and producing this dataset. Additional information regarding NWIS groundwater data can be found here: USGS Groundwater Data for the Nation. More information regarding the NGWMN can be found here: National Ground-Water Monitoring Network (usgs.gov) Groundwater_Levels_NWIS_downloaded_data_full_record.zip: csv files for each site with GW levels are in the zip folder. These are the files directly from the script downloading the files from NWIS. The file names are the state abbreviation e.g. AK followed by the USGS site name. E.g AK574532152304701.csv Each csv includes...
Categories: Data
This folder contains percentiles from the levels record for monthly data from groundwater wells stored in NWIS and NGWMN. -------------------------------------------- Each of these zip folders contains percentiles calculated on these monthly groundwater levels for the period specified in the title. Both continuous monitoring sites and tape downs were condensed to monthly values by taking the first level measurement that occurred within the month. Sites with more than 33% of month values missing from any decade in the period were excluded. Each daily flow was grouped 2 different ways with flows in the month, and all site values. For each group the percentile/fraction of level ranking was computed for each given flow...
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