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Spatial Extent of Data

USGS Data Source

USGS Thesaurus Keywords

reference hydrology, Gulf Coast, streamflow alteration, trend analysis, TDI, trend departure index

Place Keywords

Mississippi, Louisiana, Florida, Gulf Coast, Gulf of Mexico, Southeastern United States, Texas, Alabama

Trend Departure Index Results for the RESTORE Trend Analysis and Streamflow Alterations studies

Trend Departure Index (TDI) is computed as: (number of quantiles for which the trend result departs from the result for the associated reference site) / (total number of quantiles). In a Quantile-Kendall analysis for the annual time frame, the denominator, or total number of quantiles, is 365. TDI varies from 0 to 1; a TDI of 0 indicates the trend results for the site are identical to the reference site and any value larger than 0 indicates some departure compared to the reference condition. The larger the number (the closer to 1) the more departure or deviation relative to the reference site in trend across all the quantiles for the site.

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Author(s) Kirk D Rodgers orcid, Kelly M Sanks
Publication Date 2020-11-12
Beginning Date of Data 1949-04-01
Ending Date of Data 2016-03-31
Data Contact
Kirk D Rodgers
DOI https://doi.org/10.5066/P9ASCZER
Citation Rodgers, K.D., and Sanks, K.M., 2020, Trend Departure Index Results for the RESTORE Trend Analysis and Streamflow Alterations studies: U.S. Geological Survey data release, https://doi.org/10.5066/P9ASCZER.
Metadata Contact
Kirk D Rodgers
Metadata Date 2020-12-02
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Citations of these data

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License http://www.usa.gov/publicdomain/label/1.0/
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Harvest Source: ScienceBase
Harvest Date: 2025-01-23T14:13:21.299Z