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|Created:||Jun 08, 2020 at 5:10 p.m.|
|Last updated:|| Mar 16, 2021 at 4:16 p.m.
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This repository provides metrics of water quality and quantity of 1386 German catchments based on time series of the
"WQQDB - water quality and quantity data base Germany" (Musolff, 2020) subsetting years from 2000 to 2015.
The data from this repository were created for Ebeling et al. (2021). Selection criteria and results are presented more in depth therein.
Natural and anthropogenic catchment characteristics are provided in another, linked repository "CCDB - catchment characteristics data base Germany" (https://doi.org/10.4211/hs.0fc1b5b1be4a475aacfd9545e72e6839). Both repositories use the same unique identifier OBJECTID for each water quality station.
This repository includes:
1.) Data table with unique identifier (OBJECTID), station name and calculated metrics of water quality dynamics for nitrate (NO3-N), phosphate (PO4-P) and total organic carbon (TOC). The metrics are mean concentrations, the slope b of the concentration (C) - discharge (Q) regression in logspace, the corresponding R2, and the ratio of the coefficients of variation CVC/CVQ. The data table also includes a flag "indep" for the independence of catchments (max. 20% area overlap with each of its subcatchments) including criteria (e.g. priority of C-Q catchments) as described in Ebeling et al. (2021). Accordingly 787 catchments are considered as independent.
2.) Readme file providing information on provided data.
Ebeling, P., Kumar, R., Weber, M., Knoll, L., Fleckenstein, J. H., & Musolff, A. (2021). Archetypes and Controls of Riverine Nutrient Export Across German Catchments. Water Resources Research, 57, e2020WR028134. https://doi.org/10.1029/2020WR028134
Conditions: Please, reference both the original data publisher and this repository for correct acknowledgements, when using the provided data.
Provided data include: OBJECTID - unique identifier Station - station name the three major nutrients: NO3 - nitrate-N (NO3-N) PO4 - orthophosphate-P (PO4-P) TOC - total organic carbon variables calculated from WQQDB data starting in the year 2000: n - number of samples mean - mean concentration cv - coefficient of variation f_cens - fraction of left-censored samples (below the detection limit) b - slope b of linear regression between concentration and discharge in logspace R2 - coefficient of determination of C-Q regression cvC_cvQ - ratio of the coefficients of variation of concentration and discharge indep - catchments recognized as independent catchments (1-true) following criteria as presented in Ebeling et al. (2021) reference: Ebeling, P., Kumar, R., Weber, M., Knoll, L., Fleckenstein, J. H., & Musolff, A. (2021). Archetypes and Controls of Riverine Nutrient Export Across German Catchments. Water Resources Research, 57, e2020WR028134. https://doi.org/10.1029/2020WR028134
|The content of this resource was created by a related App or software program||https://doi.org/10.1029/2020WR028134|
|The content of this resource references||https://doi.org/10.4211/hs.a42addcbd59a466a9aa56472dfef8721|
|The content of this resource references||http://www.ufz.de/record/dmp/archive/7754|
|The content of this resource references||https://doi.org/10.4211/hs.0fc1b5b1be4a475aacfd9545e72e6839|
|The content of this resource is derived from||http://www.ufz.de/record/dmp/archive/7754|
|The content of this resource is derived from||https://doi.org/10.4211/hs.a42addcbd59a466a9aa56472dfef8721|
People or Organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.
|Andreas Musolff||UFZ - Helmholtz-Centre for Environmental Research GmbH|