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aster-l1t.yaml
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aster-l1t.yaml
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Name: ASTER L1T Cloud-Optimized GeoTIFFs
Description: |
The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Level 1
Precision Terrain Corrected Registered At-Sensor Radiance (AST_L1T) data contains
calibrated at-sensor radiance, which corresponds with the ASTER Level 1B (AST_L1B),
that has been geometrically corrected, and rotated to a north-up UTM projection.
The AST_L1T is created from a single resampling of the corresponding ASTER L1A (AST_L1A) product.
The precision terrain correction process incorporates GLS2000 digital elevation data with
derived ground control points (GCPs) to achieve topographic accuracy for all daytime scenes
where correlation statistics reach a minimum threshold. Alternate levels of correction are
possible (systematic terrain, systematic, or precision) for scenes acquired at night or that
otherwise represent a reduced quality ground image (e.g., cloud cover).
Each AST_L1T granule is converted into three different COG files based on the sensor and spatial resolution,
VNIR at 15m, SWIR at 30m and TIR at 90m. The metadata required to transform the digital numbers (DN) to
radiance and reflectance values are also incorporated as metadata in the TIFF files.
The filenaming convention and the organization of bands are described
[here](https://github.com/awslabs/open-data-docs/tree/main/docs/aster-l1t).
Documentation: https://github.com/awslabs/open-data-docs/tree/main/docs/aster-l1t
Contact: [email protected]
ManagedBy: "[Descartes Labs](https://descarteslabs.com/)"
UpdateFrequency: Daily
Collabs:
ASDI:
Tags:
- satellite imagery
Tags:
- aws-pds
- earth observation
- satellite imagery
- geospatial
- natural resource
- sustainability
- mining
- cog
License: |
There are no restrictions on the use of data, unless expressly identified prior to or at the time of receipt.
Citation:
Resources:
- Description: Imagery and metadata
ARN: arn:aws:s3:::aster-l1t
Region: us-west-2
Type: S3 Bucket
RequesterPays: False
- Description: "[New image notifications](https://github.com/awslabs/open-data-docs/tree/main/docs/aster-l1t#receive-data-notifications-with-amazon-sns)"
ARN: arn:aws:sns:us-west-2:526859492376:aster-l1t-object_created
Region: us-west-2
Type: SNS Topic
DataAtWork:
Tutorials:
- Title: Working with ASTER L1T Visible and Near Infrared (VNIR) Data in R
URL: https://lpdaac.usgs.gov/documents/128/ASTER_L1T_Tutorial.html
AuthorName: Cole Krehbiel
AuthorURL: https://lpdaac.usgs.gov/
Tools & Applications:
- Title: Descartes Labs Platform
URL: https://descarteslabs.com/platform
AuthorName: Descartes Labs Inc.
AuthorURL: https://descarteslabs.com
- Title: Latitude-Longitude to Path-Row conversion
URL: "https://landsat.usgs.gov/landsat_acq#convertPathRow"
AuthorName: USGS
AuthorURL: https://landsat.usgs.gov
- Title: LatLongToWRS
URL: https://github.com/robintw/LatLongToWRS
AuthorName: Robin Wilson
AuthorURL: https://blog.rtwilson.com/converting-latitudelongitude-co-ordinates-to-landsat-wrs-2-pathsrows/
Publications:
- Title: ASTER L1T Product User Guide
URL: https://lpdaac.usgs.gov/documents/647/AST__L1T_User_Guide_V3.pdf
AuthorName: USGS EROS Data Center
AuthorURL: https://lpdaac.usgs.gov/products/ast_l1tv003/
- Title: ASTER L1T Algorithm Theoretical Basis
URL: https://lpdaac.usgs.gov/documents/1400/AST_L1T_ATBD_V1.pdf
AuthorName: David Meyer, Dawn Siemonsma, Barbara Brooks, and Lowell Johnson
AuthorURL:
- Title: ASTER L1T Product Specification
URL: https://lpdaac.usgs.gov/documents/1401/ASTER_L1T_Product_Specification_v1.pdf
AuthorName: USGS EROS Data Center