Imaging · collection · 2021
ABoVE: Lake Growing Season Green Surface Reflectance Trends, AK and Canada, 1984-2019
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.3334/ornldaac/1866
This dataset provides an annual time series of Landsat green surface reflectance and the derived annual trend during the growing season (June and July) for 472,890 lakes across the ABoVE Extended Study Domain from 1984 to 2019.
Description
The reflectance data are from Landsat-5, Landsat-7, and Landsat-8 sensors for the green band (center wavelength 560 nm). Over 270,000 Landsat scenes were evaluated and quality assured to be cloud-free and over water.
Lakes were selected from HydroLAKES, a global database of lakes of at least 10 ha. Lake surface reflectance was extracted from a 3-by-3-pixel area centered on each lake centroid from the selected Landsat scenes determined from lake polygons. This dataset demonstrates changes in lake color over time in the arctic and boreal regions of North America.
Read the rest (1 more)
Color is relevant for understanding physical, ecological, and biogeochemical processes in some of the world’s highest concentrations of lakes where climate change may have significant impacts.
Links
Get the data
- Data set Landing Page DOI URL doi.org/10.3334/ornldaac/1866 ↗
landing page · download · DOI / persistent id · from NASA CMR, data nasa gov
- ORNL DAAC Data Set Documentation data.ornldaac.earthdata.nasa.gov/public/above/ABoVE_GrowingSeason_Lake_Color/comp/ABoVE_Growing… ↗
documentation · download · from NASA CMR, data nasa gov
- Resource above.nasa.gov ↗
download · project · from data nasa gov, NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C2143401725-ORNL_CLOUD ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
- Collection Bundle URL data.ornldaac.earthdata.nasa.gov/protected/bundle/ABoVE_GrowingSeason_Lake_Color_1866.zip ↗
download · from NASA CMR
- PNG daac.ornl.gov/ABOVE/guides/ABoVE_GrowingSeason_Lake_Color_Fig1.png ↗
download · preview image · from data nasa gov, NASA CMR
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2143401725-ORNL_CLOUD.iso19115 ↗
download · from data nasa gov
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/above-lake-growing-season-green-surface-reflectance-tr… ↗
landing page · from data nasa gov
Catalogue records · 3
- CKAN API data.nasa.gov/api/3/action/package_show?id=571b335c-64af-47b7-9acc-b6638668c… ↗
metadata API · from data nasa gov
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2143401725-ORNL_CLOUD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2143401725-ORNL_CLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Enhanced Thematic Mapper Plus · Lakes/Reservoirs · LANDSAT-5 · LANDSAT-7 · LANDSAT-8 · Length Of Growing Season · Operational Land Imager · Reflectance · Thematic Mapper · Visible Radiance · Water Color
- From keywords
- Chemistry · Earth & Environmental Science · Engineering · Life Sciences
- Inferred from text
- Hydrology 70%
Provenance · 2 source records, 26 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2143401725-ORNL_CLOUD | 15 d ago | JSON v1 |
| NASA Data Portal | 571b335c-64af-47b7-9acc-b6638668c9d5 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3707 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (70%) |
| concepts[field].local:field:chemistry | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:engineering | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:etm | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:oli | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:tm | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/climate-indicators/land-surface-agriculture-indicators/length-of-growing-season | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/surface-radiative-properties/reflectance | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/visible-wavelengths/visible-radiance | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/surface-water/surface-water-features/lakes-reservoirs | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/water-quality-water-chemistry/water-characteristics/water-color | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:landsat-5 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:landsat-7 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:landsat-8 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |