Identification

Title

Highâ€�resolution flood precipitation and streamflow relationships in two US river basins

Abstract

Relationships between rainfall and river discharge are important for governing flood characteristics and predicting flood impacts. Previous studies have examined these relationships, but they lacked the high-resolution precipitation data necessary to analyse rainfall-streamflow correlations for individual flood episodes. The present study addresses this limitation by examining rainfall-streamflow relationships in two topographically and climatically different river basins: the Wabash River basin in Indiana and the Willamette River basin in Oregon, using high-resolution, sub-basin precipitation and discharge data. Results show that flood rainfall-streamflow relationships are highly spatially variable on a sub-basin scale. In the Wabash basin, strong positive correlations exist between rainfall and streamflow near urban areas and slight terrain gradients during flash floods, while weaker correlations between rainfall and streamflow are observed in other areas of the basin and for slow-rise floods. In the Willamette basin, strong positive slow-rise flood rainfall-streamflow relationships occur in referenced gauges in the eastern, mountainous part of the basin, while strong negative correlations occur in non-referenced gauges near reservoirs along the main rivers. Results suggest that in addition to high-resolution rainfall variability, the influence of urbanization, topography and water management on flood rainfall-streamflow relationships needs to be considered in order to forecast local flood impacts better.

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d71z47t8

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2021-03-01T00:00:00Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact