Spatial and elevation points surveyed for indirect measurements of peak streamflow associated with flooding of September to November 2017 in Puerto Rico
This dataset contains topographic (horizontal and vertical) data for 20 sites, surveyed November 6 to November 28, 2017 as part of documentation of flooding that occurred in Puerto Rico during and after Hurricane Maria (September to November 2017). Hurricane Maria hit the Island of Puerto Rico on September 20, 2017 and was one of the deadliest storms in U.S. history. USGS personnel conducted topographic surveys at selected stream sites to facilitate hydraulic modeling of peak streamflows (or discharges) – termed indirect measurements – using published standard USGS methods. Indirect (post-flood) measurements are used to characterize flood peaks that could not be determined using direct methods (for example current-velocity meters, hydro-acoustic instruments or established stage-streamflow relations) because flood conditions exceeded the capabilities of those methods, streamgage sites could not be accessed during flooding, or safety issues precluded access by USGS personnel during flooding. Indirect measurement of peak streamflow involves site reconnaissance to identify a study reach; onsite identification and flagging of high water marks (HWMs) left by the flood; topographic surveys of HWMs, channel cross-section geometry, and affected structures (such as bridges or flooded roadways); and hydraulic modeling to compute peak streamflow using field data collected at the site.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "Mark E Smith",
"@type": "vcard:Contact",
"hasEmail": "mailto:mesmith@usgs.gov"
}
|
| description | This dataset contains topographic (horizontal and vertical) data for 20 sites, surveyed November 6 to November 28, 2017 as part of documentation of flooding that occurred in Puerto Rico during and after Hurricane Maria (September to November 2017). Hurricane Maria hit the Island of Puerto Rico on September 20, 2017 and was one of the deadliest storms in U.S. history. USGS personnel conducted topographic surveys at selected stream sites to facilitate hydraulic modeling of peak streamflows (or discharges) – termed indirect measurements – using published standard USGS methods. Indirect (post-flood) measurements are used to characterize flood peaks that could not be determined using direct methods (for example current-velocity meters, hydro-acoustic instruments or established stage-streamflow relations) because flood conditions exceeded the capabilities of those methods, streamgage sites could not be accessed during flooding, or safety issues precluded access by USGS personnel during flooding. Indirect measurement of peak streamflow involves site reconnaissance to identify a study reach; onsite identification and flagging of high water marks (HWMs) left by the flood; topographic surveys of HWMs, channel cross-section geometry, and affected structures (such as bridges or flooded roadways); and hydraulic modeling to compute peak streamflow using field data collected at the site. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.5066/P908UR17",
"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.611e50f0d34e40dd9c01968d.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_611e50f0d34e40dd9c01968d |
| keyword |
[
"Caribbean",
"Eastern Caribbean",
"Elevation",
"GPS measurement",
"Global Positioning System (GPS) observations",
"Hurricane Maria",
"Puerto Rico",
"USGS:611e50f0d34e40dd9c01968d",
"controlled flooding",
"elevation",
"field inventory and monitoring",
"flooding",
"hurricanes",
"indirect measurement",
"land surveying",
"peak discharge",
"river reaches",
"rivers",
"storms",
"stream discharge",
"topographic survey",
"tropical cyclones (hurricanes and typhoons)"
]
|
| modified | 2022-06-30T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -67.3352, 17.7487, -65.5472, 18.6462 |
| theme |
[
"Geospatial"
]
|
| title | Spatial and elevation points surveyed for indirect measurements of peak streamflow associated with flooding of September to November 2017 in Puerto Rico |
