eodal.metadata.sentinel1.database.querying module

Functions to query Sentinel-1 specific metadata from the metadata DB.

Query criteria include

  • the acquisition period (between a start and an end date)

  • the geographic extent (bounding box)

  • the instrument mode (e.g., IW -> Interferometric Wide Swath)

  • the product type (e.g., GRD -> Ground Range Detected)

Copyright (C) 2022 Lukas Valentin Graf

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.

eodal.metadata.sentinel1.database.querying.find_raw_data_by_bbox(date_start: date, date_end: date, bounding_box: Polygon | str, product_type: str | None = 'GRD', sensor_mode: str | None = 'IW') → DataFrame[source]

Queries the metadata DB by Sentinel-1 bounding box, time period, product type, and sensor mode. The returned data is ordered by sensing time in ascending order.

Note

For the spatial query ST_Intersects is called.

Parameters:

  • date_start – start date of the time period

  • date_end – end date of the time period

  • bounding_box – bounding box either as extended well-known text in geographic coordinates or as shapely Polygon in geographic coordinates (WGS84)

  • product_type – Sentinel-1 product type. ‘GRD’ (Ground Range Detected) by default.

  • sensor_mode – Sentinel-1 sensor mode. ‘IW’ (Interferometric Wide Swath) by default.

Returns:

DataFrame with references to found Sentinel-2 mapper

eodal.metadata.sentinel1.database.querying.get_scene_metadata(product_uri: str) → DataFrame[source]

Returns the complete metadata record of a Sentinel-1 scene

Parameters:

product_uri – unique product identifier. This corresponds to the .SAFE name of a Sentinel-1 dataset

Returns:

DataFrame with complete scene metadata