Folders: ROOT > ScienceBase Catalog > National Water Census > Drought Science Program ( Show direct descendants )
20 results (150ms)
Location
Folder
ROOT _ScienceBase Catalog __National Water Census ___Drought Science Program Filters
Date Range
Extensions Types Contacts
Categories Tag Types Tag Schemes |
This data set contains information for each NGWMN gw site for the conterminous US of Distance with MOHP values. MOHP is the distance from the GW site to its watershed Divide (DSD) and Lateral Position (LP) distance at 90-meter cell resolution for NHDPlus version 2 stream orders 1 through 9. This paper (https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019WR025908) provides examples of using MOHP metrics as explanatory factors in random forest machine learning models (2 examples of categorical response variables and 2 continuous response variables). These data have been used as predictors of depth to water table across the U.S. Distance is in meters. This data set includes the follwoing variables:
This folder contains summaries of droughts based on percentiles estimates of groundwater levels from NIWS for various time periods. It also contains various associated files that were used in assembeling and producing this dataset. Additional information regarding NWIS groundwater data can be found here: USGS Groundwater Data for the Nation These data were produced from the groundwater level percentiles data in this sciencebase domain here: "Tabular Data/Ground Water/Groundwater Level Percentiles/National Water Information System (NWIS) Water Level Percentiles for Various Time Periods" The script "calculate_drought_properties_for_percentiles_gw_simeone.R" was used to calculate these data. Explanation of file...
Categories: Data
Percentiles of monthly gw levels from the National Ground Water Monitoring Netowrk. This folder contains percentiles from the levels record for monthly data from USGS groundwater wells stored in NGWMN. Each of these zip folder contains percentiles calculated on these monthly groundwater levels for the time period specified in the title. Both continuous montitoring sites and tapedowns were condenced to monthly values by taking the first level measurement that occred within the month. Sites with more than 1/3 of month values missing from the time 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...
Categories: Data
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 dataset contains groundwater levels data from NWIS in csv files. It also contains various associated files that were used in assembeling and producing this dataset. Additional information regarding NWIS groundwater data can be found here: USGS Groundwater Data for the Nation raw_ground_water_levels_USGS.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 includeds the following variables. datetime: the date time of the observation mm/dd/yyyy filename (e.g AK574532152304701): this field contains...
Categories: Data
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,...
Average daily mass content of water in 4 soil layers (kg/m2) derived from NLDAS for GAGESII basins (1981-2021). The 4 different soil layers iare 0 - 10 centimeters (cm), 10 - 40cm, 40 - 100 cm, and 100 - 200 cm. Data were processed from hourly North American Land Data Assimilation System Phase 2 datasets (NLDAS-2.0 in netCDF format) for daily averages and further incorporated into annual files, one for each year in the period of record (1980 - 2020. Units are mass of water in kilograms per square meter (kg/m2).
This folder contains downloaded groundwater levels from the National Ground Water Monitoring Network. It also contains various associated files that were used in assembeling and producing this dataset. More information regarding the NGWMN can be found here: National Ground-Water Monitoring Network (usgs.gov) Groundwater Levels_NGWMN_downloaded data_full record.zip: contains the full dataset of downloaded values. Values were downloaded with the script: 1_retrieve_NGWMN_groundwater_data_simeone.R The file names are the agencies abbreviation e.g. followed by the site name. e.g. ADWR.313124110393301.csv Each csv includeds the following variables. Site: the side id. Note that agency id is not included as that is...
Categories: Data
This folder contains percentiles from the levels record for monthly data from USGS groundwater wells stored in NWIS. Each of these zip folder contains percentiles calculated on these monthly groundwater levels for the time period specified in the title. Both continuous montitoring sites and tapedowns were condenced to monthly values by taking the first level measurement that occred within the month. Sites with more than 20% of month values missing from the time 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 value. This ranking was done using the percent_rank...
Categories: Data
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...
|
|
