Running trend analysis for mean annual baseflow from 1911 to 2016 for 23 streams across the Hawaiian Islands.
This dataset is a running trend analysis of baseflow from USGS stream gage records from as early as 1911 to 2016 for 23 unregulated streams across the five largest Hawaiian Islands: Kauai, Oʻahu, Molokaʻi, Maui, and Hawaiʻi. First, we separated mean daily flow into direct run‐off and baseflow with the “lfstat” separation procedure in R, which employs the Institute of Hydrology (1980) standard baseflow separation procedure of 5‐day blocks to identify minimum flow, called a turning point. The turning points are then connected to obtain the baseflow hydrograph. For each stream, Sen's slope and Mann–Kendall statistic were calculated incrementally using the R package “trend” to give window sizes from 10‐107 years depending on length of the flow record. Initial mean daily stream flow data were obtained from the U.S. Geological Survey (https://waterdata.usgs.gov/nwis/rt).
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Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Climate Adaptation Science Centers", "@type": "vcard:Contact", "hasEmail": "mailto:casc-data@usgs.gov" } |
| description | This dataset is a running trend analysis of baseflow from USGS stream gage records from as early as 1911 to 2016 for 23 unregulated streams across the five largest Hawaiian Islands: Kauai, Oʻahu, Molokaʻi, Maui, and Hawaiʻi. First, we separated mean daily flow into direct run‐off and baseflow with the “lfstat” separation procedure in R, which employs the Institute of Hydrology (1980) standard baseflow separation procedure of 5‐day blocks to identify minimum flow, called a turning point. The turning points are then connected to obtain the baseflow hydrograph. For each stream, Sen's slope and Mann–Kendall statistic were calculated incrementally using the R package “trend” to give window sizes from 10‐107 years depending on length of the flow record. Initial mean daily stream flow data were obtained from the U.S. Geological Survey (https://waterdata.usgs.gov/nwis/rt). |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.21429/d367-wq47", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.63a487e8d34efb1ef763627d.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_63a487e8d34efb1ef763627d |
| keyword |
[ "Hawaiʻi", "Mann‐Kendall", "Pacific", "Running trend analysis", "USGS:63a487e8d34efb1ef763627d", "biota", "external research support", "streamflow", "streamflow trends" ] |
| modified | 2026-09-03T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -159.8950, 18.4588, -154.4897, 22.5937 |
| theme |
[ "geospatial" ] |
| title | Running trend analysis for mean annual baseflow from 1911 to 2016 for 23 streams across the Hawaiian Islands. |
