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Volumetric and Mid-Section Discharge Measurement data, Summer through Fall 2020, H.J. Andrews Experimental Forest, Lookout Creek Basin, Oregon

Metadata Updated: September 24, 2025

Discrete volumetric and mid-section stream discharge measurements were conducted from July through October 2020 in H.J. Andrews Experimental Forest near Blue River, OR. The measured streams are part of the Lookout Creek basin, draining into Blue River and subsequently the McKenzie River on the west slope of the Cascade Range. ORWSC Streamflow measurements supplemented an eco-drought low-flow modeling project in partnership with the Forest and Rangeland Ecosystem Science Center (FRESC) and the USGS Water Mission Area (WMA). Measurements were collected at 25 selected sites with co-located HOBO data loggers and 7 miscellaneous (MISC) sites with no data loggers present. HOBO logger data were collected and processed by FRESC team members. Volumetric measurements were collected by placing a modified weir into the stream and directing the entire streamflow over the weir, easing the collection of water into a bucket. Collections of water were timed to the hundredth of a second using a stopwatch, and volumes were measured with a graduated cylinder in 20 ml increments. Mid-section measurements were conducted following USGS protocol, wading in streams using SonTek FlowTracker-2 handheld acoustic Doppler velocimeters. Sites were measured during two field runs occurring July 6th through 10th 2020 and August 10th through 14th 2020. Two of the sites were measured a third time on October 26th and 27th, 2020, to compare midsection measurements with volumetric measurements. In the streams with HOBO dataloggers, the volumetric measurements achieved satisfactory channeling of the streams with the weir method and are considered more accurate with less uncertainty than the mid-section measurements. Steep channel conditions, large boulders and cobbles through the channel cross-section, large stream velocity angles, non-standard stream velocity profiles, and the channelization of flows created unideal conditions for midsection measurements. The MISC streamflow measurements were conducted at adequate channel cross-sections detailed by USGS protocols.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date September 12, 2025
Metadata Updated Date September 24, 2025

Metadata Source

Harvested from DOI USGS DCAT-US

Additional Metadata

Resource Type Dataset
Metadata Created Date September 12, 2025
Metadata Updated Date September 24, 2025
Publisher U.S. Geological Survey
Maintainer
Identifier http://datainventory.doi.gov/id/dataset/usgs-612d234dd34e40dd9c0887f9
Data Last Modified 2022-01-26T00:00:00Z
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://ddi.doi.gov/usgs-data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 3639430f-14ec-42c4-bbce-8cae10305cb7
Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
Harvest Source Title DOI USGS DCAT-US
Metadata Type geospatial
Old Spatial -122.386825815, 44.152679031664, -122.0598564195, 44.308741716863
Source Datajson Identifier True
Source Hash f6a47887deaf7a464335fb1a7bc1a315dab2852fc8805c462d3cdca991108c02
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -122.386825815, 44.152679031664, -122.386825815, 44.308741716863, -122.0598564195, 44.308741716863, -122.0598564195, 44.152679031664, -122.386825815, 44.152679031664}

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