Streamflow Statistic Trends at USGS Streamgages within the Chesapeake Bay Watershed (1940-2018)
This Child Item contains (1) a table of trends in eight annual streamflow statistics for the time periods 1940-1969, 1970-1999, and 2000-2018, and
(2) a .zip file of plots of the eight statistical trends for the three time periods.
The annual streamflow statistics and their trends were computed by Climate Year (CY) for 1-,7- and 30-day minima and by Water Year (WY) for 1-,7- and 30-day maxima, median and mean.
Streamgages from the original dataset (n = 409) were excluded from one or more time periods of analysis because of extensive data gaps that would interrupt trend lines;
therefore, streamgages were indexed into the earliest possible time period relative to their installation date
(for example, a streamgage with an operating start year of 1958 would be included in the analysis for the time periods 1970-1999 and 2000-2018), which resulted in different sample sizes for each period:
1940-1969 (n = 90), 1970-1999 (n = 167), and 2000-2018 (n = 243).
Similarly, multiple streamgages were wholly excluded because of frequent discontinuities in the daily mean streamflow used to derive the annual mean streamflow through all three time periods.
Find Related Datasets
Search by Tags
Click any tag below to search for similar datasets
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "Christopher A. Mason",
"@type": "vcard:Contact",
"hasEmail": "mailto:camason@usgs.gov"
}
|
| description | This Child Item contains (1) a table of trends in eight annual streamflow statistics for the time periods 1940-1969, 1970-1999, and 2000-2018, and (2) a .zip file of plots of the eight statistical trends for the three time periods. The annual streamflow statistics and their trends were computed by Climate Year (CY) for 1-,7- and 30-day minima and by Water Year (WY) for 1-,7- and 30-day maxima, median and mean. Streamgages from the original dataset (n = 409) were excluded from one or more time periods of analysis because of extensive data gaps that would interrupt trend lines; therefore, streamgages were indexed into the earliest possible time period relative to their installation date (for example, a streamgage with an operating start year of 1958 would be included in the analysis for the time periods 1970-1999 and 2000-2018), which resulted in different sample sizes for each period: 1940-1969 (n = 90), 1970-1999 (n = 167), and 2000-2018 (n = 243). Similarly, multiple streamgages were wholly excluded because of frequent discontinuities in the daily mean streamflow used to derive the annual mean streamflow through all three time periods. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.5066/P99OOTED",
"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.6092890cd34e791692e3e913.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_6092890cd34e791692e3e913 |
| keyword |
[
"Chesapeake Bay Watershed",
"Delaware",
"EGRET",
"Maryland",
"New York",
"Pennsylvania",
"USGS:6092890cd34e791692e3e913",
"United States",
"Virginia",
"Washington DC",
"West Virginia",
"flow",
"stream flow trends",
"time series"
]
|
| modified | 2021-08-12T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -79.167480469182, 36.208470061656, -74.904785156852, 42.714410712674 |
| theme |
[
"geospatial"
]
|
| title | Streamflow Statistic Trends at USGS Streamgages within the Chesapeake Bay Watershed (1940-2018) |
