Summary & Purpose

Non-perennial streams comprise over half of the global stream network and impact downstream water quality. Stream drying occurs when groundwater is the primary flow source, but the dynamic relationship between spatiotemporal stream drying patterns, shallow groundwater inputs, and topographic controls remains poorly characterized and understood. We measured stream drying patterns at 15-minute intervals at 25 locations in Murphy Creek, part of the larger Reynolds Creek Critical Zone Observatory in southwest Idaho, from June 3 to October 1, 2019. In addition we collected continuous 15-minute, water level and specific conductivity data that was used to estimate discharge and groundwater flux. Discharge was determined using a stage discharge curve informed by in person measurements. Groundwater flux was calculated using a two-endmember mixing equation with runoff and groundwater endmembers. Conclusions from these data suggest that surface flow persists when groundwater inputs are stable and that at the stream scale drying is most likely when the ratio of groundwater to total discharge is high.

Author Identifier

Sara R. Warix, ORCID 0000-0003-2509-6849
Sarah E. Godsey, ORCID 0000-0001-6529-7886
Kathleen A. Lohse, ORCID 0000-0003-1779-6773
Rebecca L. Hale, ORCID 0000-0002-3552-3691

Date of Publication or Submission

12-3-2020

DOI

10.18122/reynoldscreek/22/boisestate

Funding Citation

Thanks to NSF [#1653998 & RC CZO Coop Agreement EAR 1331872], Exxon Mobil, the Idaho State University Geslin Fund, and the Geological Society of America.

Single Dataset or Series?

Series

Data Format

.xlxs and .csv

Data Attributes

Please see the first and second sheets of the excel document, or Sensor_Locations.csv and Flagging.csv respectively.

Map Area

43.251912° -116.816932°, 43.259829° -116.817746°

Map Area

43.259390° -116.847949°, 43.252490° -116.847999°

Time Period

6/3/2019 - 10/1/2019

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Use Restrictions

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Available for download on Friday, December 03, 2021

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