Yukon Flats National Wildlife Refuge; USGSEntry ID: EARTH_LAND_USGS_AK_YUKON_FLATS
Abstract: Digital cartographic data is provided on the Yukon Flats National Wildlife
Refuge. The data set contains land cover classifications derived from Landsat
MSS data and elevation, slope and aspect data derived from DEM data. Data can
be keyed on a U.S. Geological Survey 1:250,000 quadrangle basis. Spatial
referencing is by 50 meter grid cells. Data source is Landsat MSS data and
Digital Elevation Model (DEM) data. The data set contains 70 records.
Limited documentation and users guide are available. Data is organized by 7
1/2 ' or 15 ' quads.
(Click for Interactive Map)
Data Set Citation
Dataset Title: Yukon Flats National Wildlife Refuge
Dataset Publisher: USGSOnline Resource: http://agdc.usgs.gov/data/usgs/erosafo/ak_lcc/ak_lcc.html
Start Date: 1984-12-31Stop Date: 1984-12-31
BIOSPHERE > TERRESTRIAL ECOSYSTEMS > WETLANDS
HUMAN DIMENSIONS > ENVIRONMENTAL GOVERNANCE/MANAGEMENT > LAND MANAGEMENT > LAND USE CLASSES
TERRESTRIAL HYDROSPHERE > SURFACE WATER > WETLANDS
LAND SURFACE > LAND USE/LAND COVER > LAND COVER
LAND SURFACE > LAND USE/LAND COVER > LAND USE CLASSES
LAND SURFACE > TOPOGRAPHY > LANDFORMS
LAND SURFACE > TOPOGRAPHY > TOPOGRAPHICAL RELIEF
LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS
BIOSPHERE > AQUATIC ECOSYSTEMS > WETLANDS
Quality The values provided in temporal and spatial coverage are approximate only.
In the 2007/2008 Season significant work on this project was carried out on the SPIEX voyage - (Sea Ice Physics and Ecosystems eXperiment). See the child metadata record for more information.
Taken from the 2008-2009 Progress Report:
... Laboratory activity included analysis of exopolysaccharides (EPS) using the PSA and alcian blue methods, and showed good agreement with previously published data. Dissolved iron (less than 0.2 microns) and total dissolvable iron (unfiltered) were measured using a FIA-CL method adapted to high gradients of salinity and concentrations. Polycarbonate (PC) filters (Nuclepore 0.2 micron pore size) retaining particulate metals were digested in a mixture of strong, ultrapure acids (750 micro litre 12N HCl, 250 micro litre 40% HF, 250 micro litre 14N HNO3) on a hotplate at 125 degrees C for 8 h. The procedure was successfully applied to plankton, estuarine and river sediment reference materials to verify the recovery of the digestion treatment. The concentrations of particulate iron (PFe) were determined by high resolution ICP-MS at the Central Science Laboratory at UTAS. All analytical milestones were successfully completed, data compiled and prepared for publication.
Difficulties affecting project:
The second part of the project (field sampling at Casey) was not achieved during austral spring 2008, due to unavailability of berths at Casey Station.
Taken from the 2009-2010 progress report:
The collection of a time series of Antarctic coastal sea ice was completed off the coast of Casey station Antarctica between Oct and Dec 2009. Two researchers, Pier van der Merwe and Delphine Lannuzel were flown into Casey station on FA02. Lab facilities were provided for sample processing and trained staff supplied to escort the researchers into the field via Hagglunds. Sample processing and analysis is 90% completed and the write up of the data is occurring currently and the first paper based on the Fe size fractionation and release during sea ice melt should be finished by early August.
Access Constraints Data are available for download via the child records.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_3026 when using these data.
Data Set Progress
Role: TECHNICAL CONTACT
Phone: +61 3 6226 2988
Fax: +61 3 6226 2973
Email: tom.trull at utas.edu.au
GPO BOX 252-80 Antarctic CRC University of Tasmania
Province or State: Tasmania
Postal Code: 7001
Role: DIF AUTHOR
Phone: +61 3 6232 3244
Fax: +61 3 6232 3351
Email: dave.connell at aad.gov.au
Australian Antarctic Division 203 Channel Highway
Province or State: Tasmania
Postal Code: 7050
van der Merwe, P., Lannuzel, D., Bowie, A., Mancuso Nichols, C. and Meiners, K. (Unknown), Iron fractionation in pack and fast ice in East Antarctica: temporal decoupling between the release of dissolved and particulate iron during spring melt., Deep-Sea Research Part II Oceanographic Research Papers
van der Merwe, P., Lannuzel, D., Mancuso Nichols, C., Meiners, K., Heil, P., Norman, L., Thomas, D.N. and Bowie, A. (2009), Biogeochemical observations during the winter-spring transition in East Antarctic sea ice: evidence of iron and exopolysaccharide controls., Marine Chemistry, 115, 163-175
van der Merwe, P., Lannuzel, D., Bowie, A., Mancuso Nichols, C., Meiners, K., Townsend, A. (Unknown), Temporal study of Fe flux from fast ice in East Antarctica during austral summer melt., Biogeosciences Discussions, In preparation
Lannuzel, D., Schoemann, V., de Jong, J., Pasquer, B., Masson, F., van der Merwe, P., Tison, J.L. and Bowie, A. (Unknown), What controls the distribution of dissolved iron in Antarctic sea ice: spatial, seasonal or inter-annual variability?, Journal of Geophysical Research-Biogeosciences., Accepted.
Norman, L., Thomas, D.N., Stedmon, C.A., Granskog, M.A., Papadimitriou, S., Krapp, R.H., Meiners, K., Lannuzel, D., van der Merwe, P. and Dieckmann, G. (Unknown), The characteristics of dissolved organic matter (DOM) and chromophoric dissolved organic matter (CDOM) in Antarctic sea ice., Deep-Sea Research Part II Oceanographic Research Papers.
Lannuzel D., Bowie A.R., van der Merwe P., Townsend A., and Schoemann V. (2010), Dissolved and particulate metals in Antarctic sea ice and their role in tracing Fe sources, Marine Chemistry, In preparation
Lannuzel D., Bowie A.R. and van der Merwe P. (2010), Size fractionation of trace metals during a time series in land-fast ice, Antarctica., Marine Chemistry, In preparation
Creation and Review Dates
DIF Creation Date: 2009-04-27
Last DIF Revision Date: 2012-02-29