Lake Database from Landsat TM and ETM+,1970s, 2000s, 2013-2014, Western Alaska (US)

Lindgren, Prajna R.; Grosse, Guido; Romanovsky, Vladimir E.

This vector data layer covers 6 major lake districts (Baldwin Peninsula, Kobuk Delta, Selawik Lowland, Northern Seward Peninsula, Central Seward Peninsula, and Yukon-Kuskokwim Delta) in the northern and central sub-regions of the Western Alaska Landscape Conservation Cooperative (WALCC) region and consists of polygons of lakes with areas equal or greater than 1.0 ha. More than 58000 Lakes were mapped from Landsat TM and ETM+ imagery acquired between 1972 and 1975, 2002 and 2009, and 2013 and 2014 using Object-Based Image Analysis (OBIA) techniques with an classification accuracy of 96%. The spatial image resolution of Landsat TM and ETM+ is 30 m. Permafrost characteristics and surficial geology associated with lake polygons were determined from the Alaska permafrost map (Jorgenson et al. 2008).

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Contact

Grosse, Guido

Metadata Access

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Dati un resursi

Papildus informācija

Lauks Vērtība
Identifier DOI:10.1594/PANGAEA.847703
Project(s)
Institute University of Alaska Fairbanks
Avots https://doi.org/10.1594/PANGAEA.847703
Publication Date 2015-07-02
Versija 1.0
Product Western Alaska Lake Database
Sensor Landsat TM and ETM+
Files
  1. Database Table Attributes PDF
  2. Western Alaska Lake Database: 1970s Shapefile
  3. Western Alaska Lake Database: 2000s Shapefile
  4. Western Alaska Lake Database: 2013-2014 Shapefile
Variables [Units]
  1. Lake_ID: Unique ID assigned to individual lake
  2. Area_Ha_F: Lake area in Hector [ha]
  3. Area_SqM_F: Lake area in Square Meter [m2]
  4. Img_Date: Acquisition date of image on which lake is mapped or the date lake is visible on the image [yyyy/mm/dd]
  5. Year: Acquisition year of image on which lake is mapped or the year lake is visible on the image.
  6. LS_Scene: Scene or image name on which lake is mapped
  7. AGGRDEPOS: Surficial geologic deposit found in the area where lake is mapped
  8. DEPOSITNAM: Surficial geologic deposit name
  9. DEPOSITTYP: Surficial geologic deposit type found in the area where lake is mapped
  10. ECOREGION: Ecoregion type of the area where lake is mapped
  11. ICECLOWASS: Ground ice volume type found in the area where lake is mapped
  12. PF_EXTENT: Permafrost zone type in the area where lake is mapped
  13. TEXTURE: Surficial geologic texture
  14. Thermokarst: Thermokarst type found in the area where lake is mapped
Region Western Alaska
Spatial Reference EPSG:3338 NAD83 / Alaska Albers
Spatial Resolution 30 m
Spatial Coverage Latitude 59.75 to 67.00, Longitude -168.15 to -158.00
Temporal Coverage 1972-1975, 2002-2009, 2013-2014
Temporal Resolution
Formāts Shapefile
Is Supplement To

Prajna R Lindgren et al 2021 Environ. Res. Lett. 16 025006
Related to

Grosse, Guido; Lindgren, Prajna R; Romanovsky, Vladimir E (2015): Broad-scale lake and permafrost dynamics in the Western Alaska LCC region. Western Alaska Landscape Conservation Cooperative Project WA2011_02, Final Report

Lindgren, Prajna R; Grosse, Guido; Romanovsky, Vladimir E (in review): Landsat-based lake distribution and changes in western Alaska permafrost regions between 1970s and 2010s. Journal of Hydrology

Dataset extent