Waiting for the snow to melt…
The WHONDRS Summer 2019 Sampling (S19S) Campaign collected samples in 97 globally distributed river corridor systems between July and September 2019. Surficial streambed sediments were collected at three locations within each site (upstream, midstream, and downstream). Surface water was collected at the downstream site. This dataset includes a portion of the data types produced from the sediment samples and does not include any results from the surface water. Surface water data can be found at https://data.ess-dive.lbl.gov/view/doi:10.15485/1603775. The S19S campaign was designed with the science community to ask questions associated with links among core/transient metabolomes, microbial metabolism, biogeochemical function, and physical properties of watershed and river corridor systems. This data package was originally published in December 2020. It was updated in April 2021 (v2; modified files), May 2022 (v3; new and modified files), November 2022 (v4; new and modified files), January 2023 (v5 and v6; new and modified files), February 2023 (v7; new and modified files), August 2023 (v8; new and modified files), and July 2025 (new and modified files). See the change history section in the readme for details. This dataset contains (1) high resolution characterization of dissolved organic matter from sediment via 12 Tesla Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) through the Environmental Molecular Sciences Laboratory (EMSL; https://www.pnnl.gov/environmental-molecular-sciences-laboratory); (2) dissolved organic carbon (DOC, measured as non-purgeable organic carbon, NPOC); (3) respiration rates and normalized respiration rates calculated from laboratory sediment incubations; (4) X-ray fluorescence (XRF) elemental composition; (5) grain size distribution from the < 2 millimeter fraction of sediment; (6) total organic carbon and total nitrogen content; (7) bacterial abundance flow cytometry data; (8) sediment stable isotopes (C and N); (9) site photos; (10) field and laboratory methods metadata, including international generic sample number (IGSN) mapping file; (11) file-level metadata (flmd); (12) data dictionary (dd); and (13) water and sediment mass and volume used in incubations. The FTICR-MS files are .xml, and the data package includes instructions for using Formularity (https://omics.pnl.gov/software/formularity) and an R script to process the data based on the user’s specific needs. The XRF data includes .msa, .txt, and .spx files. All other data files are .csv, .pdf, .txt, .jpg, or .jpeg. CORRECTION: Carbon and nitrogen content are reported as percentages. The current column headers "01395_C_percent_per_mg" and "01397_N_percent_per_mg" are incorrect. These should read "01395_C_percent" and "01397_N_percent" and will be corrected in the next version of this data package.
Knowledge graph centered on WHONDRS Summer 2019 Sampling Campaign: Global Rive with 10 nodes and 29 connections. Top connected: dissolved organic matter, DNA metabarcoding, aerobic respiration, isotopic fractionation, microbial activity.
Items connected by shared entities, co-authorship, citations, or semantic similarity.