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WAIS Divide Biological Data from J. Priscu and C. Foreman, Montana State University

Listed in NASA Earthdata CMR

Data from J. Priscu and C. Foreman, Montana State University.

Description

WAIS Divide core (WDC05Q, Stick D). Ice core samples were decontaminated following (Christner et al., 2005 Icarus, 174: 572-584) and handled in a class 100 environmental chamber.

Meltwater was pre-filtered (30um) and gently sonicated prior to staining biotic particles with 5uM SYTO 60 (Invitrogen) for 5 min. Counts of biotic and abiotic particles were obtained using a Microcyte flow cytometer. Bacterial Productivity was determined via the incorporation of tritiated thymidine (TdR) into DNA at 6C following method of Fuhrman and Azam 1982 Marine Biology, 66: 109-120.

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The dissolved organic carbon (DOC) concentration of the ice core samples was obtained using a Shimadzu TOC 5000, see Christner et al., 2006 Limnology and Oceanography, 51(6): 2485-2501 for explanation of methods.

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Topics

Inferred from text
Pollution and contamination 74%
Provenance · 1 source records, 17 field assertions
SourceKeyLast seenRaw
NASA Earthdata CMRC1214591041-SCIOPS8 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[field].anzsrc:group:4105enrichment · NASA CMRtaxonomy-embedding@1.1.0title+keywords+description (74%)
concepts[instrument].gcmd_instrument:flow-cytometrysource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[instrument].gcmd_instrument:microscopessource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[instrument].gcmd_instrument:scintillation-counterssource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[instrument].gcmd_instrument:tocsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/biological-classification/bacteria-archaeasource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/biosphere/ecosystems/aquatic-ecosystemssource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/cryosphere/glaciers-ice-sheetssource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/paleoclimate/ice-core-recordssource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/paleoclimate/ice-core-records/particulate-mattersource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[platform].gcmd_platform:not-providedsource · NASA CMRconnector:nasa_cmr@1.0.0
descriptionsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/Abstract
spatialsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/SpatialExtent
temporalsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/TemporalExtents
titlesource · NASA CMRconnector:nasa_cmr@1.0.0/umm/EntryTitle
version_labelsource · NASA CMRconnector:nasa_cmr@1.0.0