Gross primary production estimates and associated light, sediment, and water quality data from the Colorado River below Glen Canyon Dam
Data for journal manuscript: Experimental reductions in sub-daily flow fluctuations increased gross primary productivity for 425 river kilometers downstream
Dates
Publication Date
2022-06-21
Start Date
2012-02-25
End Date
2020-07-19
Citation
Deemer, B.R., Yard, M.D., Voichick, N., Goodenough, D.C., Bennett, G.E., Hall Jr., R.O., Dodrill, M.J., Topping, D.J., Gushue, T., Muehlbauer, J.D, Kennedy, T.A., and Yackulic, C.B., 2022, Gross primary production estimates and associated light, sediment, and water quality data from the Colorado River below Glen Canyon Dam: U.S. Geological Survey data release, https://doi.org/10.5066/P9ZS6YLV.
Summary
These data were compiled to model the effects of flow regime and bed grain size distributions on rates of gross primary production (GPP) in the Colorado River below Glen Canyon Dam, AZ, USA. The objectives of our study were to quantify daily and weekly scale effects of an experimental flow regime on GPP in the Colorado River. The experimental flow was conducted at Glen Canyon Dam from May-August in 2018, 2019, and 2020 and contrasted steady-low flows on weekend days with business-as-usual hydropeaking flows during weekdays. This data release only contains data through 2019. These data represent daily-scale estimates of GPP, discharge, turbidity, water depth, and canyon shading for eleven reaches on the Colorado River below Glen Canyon [...]
Summary
These data were compiled to model the effects of flow regime and bed grain size distributions on rates of gross primary production (GPP) in the Colorado River below Glen Canyon Dam, AZ, USA. The objectives of our study were to quantify daily and weekly scale effects of an experimental flow regime on GPP in the Colorado River. The experimental flow was conducted at Glen Canyon Dam from May-August in 2018, 2019, and 2020 and contrasted steady-low flows on weekend days with business-as-usual hydropeaking flows during weekdays. This data release only contains data through 2019. These data represent daily-scale estimates of GPP, discharge, turbidity, water depth, and canyon shading for eleven reaches on the Colorado River below Glen Canyon Dam in AZ, USA during May and June of 2018 and 2019. These data also contain ~8 years of weekly-scale estimates of GPP at three long term gaged sites in the same system together with weekly mean discharge and gamma, a proxy of the bed grain size distribution. Finally, these data contain paired measurements of turbidity and light attenuation from the Colorado River during 2018-2020. These data were collected by the U.S. Geological Survey - Southwest Biological Science Center, Grand Canyon Monitoring and Research Center. These data can be used to look at spatial and temporal (daily, seasonal, and year-to-year) patterns in riverine GPP and associated predictor variables. These data can also be used in studies examining the relationship between turbidity and light attenuation.
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Gross_Primary_Production_Metadata.xml Original FGDC Metadata
View
62.61 KB
application/fgdc+xml
GPP_Daily_Data.csv
84.11 KB
text/csv
GPP_Weekly_Data.csv
51.31 KB
text/csv
Light_Attenuation_Data.csv
11.92 KB
text/csv
Sites.csv
923 Bytes
text/csv
Stream_Metabolizer_Inputs_Data.csv
49.07 MB
text/csv
PGrams_BTusso_USGS.jpg “Colorado River steady-low flow (L), load following flows (R)”
4.54 MB
image/jpeg
Related External Resources
Type: Related Primary Publication
Deemer, B.R., Yackulic, C.B., Hall, Jr., R.O., Dodrill, M.J., Kennedy, T.A., Muehlbauer, J.D, Topping, D.J., Voichick, N., and Yard, M.D., 2022, Experimental reductions in sub-daily flow fluctuations increased gross primary productivity for 425 river kilometers downstream: Proceedings of the National Academy of Sciences (online), https://doi.org/10.1093/pnasnexus/pgac094.
The purpose of these data are to model the effects of river flow regime on rates of gross primary production (GPP) in the Colorado River. The majority of these data were collected as part of long term monitoring efforts on the Colorado River, however shorter-term data from the MiniDOT oxygen loggers were collected specifically to understand the effects of an experimental flow regime on GPP. These data could be used in broader meta-analyses of aquatic GPP. We also expect the rates of GPP contained in this dataset will be used to help explain aquatic insect and fish population dynamics in the same system (the Colorado River) given preliminary work that suggests the importance of food limitation and bottom-up trophic dynamics. Finally, the relationships between turbidity and light attenuation contained in this dataset could be compared to relationships in other rivers.
Rights
The author(s) of these data request that data users contact them regarding intended use and to assist with understanding limitations and interpretation. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.
Preview Image
Colorado River steady-low flow (L), load following flows (R)