Data from J. Priscu and C. Foreman, Montana State University, collected from the WAIS Divide ice core (WDC05Q, Stick D). The dataset includes counts of biotic and abiotic particles obtained via flow cytometry, bacterial productivity measurements via tritiated thymidine incorporation, and dissolved organic carbon (DOC) concentration analyses. Samples were decontaminated and handled in a class 100 environmental chamber, with methods detailed in referenced scientific literature.
Use Cases
- Modeling microbial biomass in ancient ice based on biotic particle counts.
- Analyzing relationships between bacterial productivity and dissolved organic carbon concentrations.
- Studying microbial survival and activity in subglacial environments based on thymidine incorporation data.
Strengths
- Data collection follows specific, peer-reviewed decontamination and analytical protocols (Christner et al., 2005; Fuhrman and Azam, 1982).
- Multiple biological and chemical measurements (particle counts, productivity, DOC) are integrated for each sample.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Last update date is unknown; freshness unverified.
Provenance
- Source
- J. Priscu and C. Foreman, Montana State University, via NASA Earthdata.
- Collection Method
- Ice core samples were decontaminated, melted, and analyzed using flow cytometry for particle counts, tritiated thymidine incorporation for bacterial productivity, and a Shimadzu TOC 5000 for DOC.
- Time Range
- null
- Freshness
- null
- Geography
- WAIS Divide, Antarctica (core WDC05Q, Stick D).