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Imaging · collection · 2021

ABoVE: Historical Lake Shorelines and Areas near Fairbanks, Alaska from 1949-2009

Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.3334/ornldaac/1859

This dataset includes maps of historical lake shorelines with derived lake areas in the southern portion of the Goldstream Valley and the surrounding landscape north of Fairbanks, Alaska, USA.

Description

Historical lake margins were mapped for 1949, 1967, and 1985 using 1 m aerial photographs available through U.S. Geological Survey Earth Explorer, and for 2009 using 2.5 m SPOT satellite image mosaics. The study area was a 214 km<sup>2</sup> area of Pleistocene-aged yedoma permafrost in the southern portion of the Goldstream Valley.

An increasing number of thermokarst lakes and ponds, from 130&ndash;275 per year, were identified over the entire study period. Anthropogenic lakes, formed by mining peat, gravel, and gold concentrated in the northwestern extent of Goldstream Valley, were excluded.

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Catalogue records · 3

Topics

Provenance · 2 source records, 20 field assertions
SourceKeyLast seenRaw
NASA Earthdata CMRC2067629235-ORNL_CLOUD8 d agoJSON v1
NASA Data Portal53fd8833-f0a0-481e-a5f2-c136eeb9f4896 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[field].anzsrc:group:3709enrichment · NASA CMRtaxonomy-embedding@1.1.0title+keywords+description (70%)
concepts[field].local:field:earth-environmentalmapping · data nasa govconnector:data_nasa_gov@1.0.0
concepts[instrument].gcmd_instrument:camerasource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[instrument].gcmd_instrument:hrvirsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/biosphere/ecosystems/freshwater-ecosystems/lake-pondsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/land-surface/frozen-ground/permafrostsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/surface-water/surface-water-features/lakes-reservoirssource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[modality].local:modality:imageenrichment · NASA CMRkeyword-concept-rules@1.0.0title+description (75%)
concepts[platform].gcmd_platform:aerial-photographssource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[platform].gcmd_platform:spot-1source · NASA CMRconnector:nasa_cmr@1.0.0
created_datesource · NASA CMRconnector:nasa_cmr@1.0.0
descriptionsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/Abstract
license_textsource · data nasa govconnector:data_nasa_gov@1.0.0
publication_datesource · NASA CMRconnector:nasa_cmr@1.0.0
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
updated_datesource · NASA CMRconnector:nasa_cmr@1.0.0
version_labelsource · NASA CMRconnector:nasa_cmr@1.0.0