LandsatMGM example data for tile 004W_40N

This dataset is an example tile of LandsatMGM, a monthly, gap-filled Landsat time series at 30 m resolution. It covers one 1° × 1° tile (004W_40N: longitude 5°W–4°W, latitude 40°N–41°N, central Spain) for 29 years (1997–2025). Each year has 12 monthly images for 7 spectral bands, plus a per-pixel quality layer.

Each year is a separate zip file (004W_40N_YYYY.zip, about 1.6 GB each, about 45 GB in total)

Contents of each zip (96 GeoTIFFs)

7 bands × 12 months: red, green, blue, nir, swir1, swir2, thermal
12 monthly quality layers
File naming: 004W_40N_{band}_{YYYYMM}.tif (e.g. 004W_40N_nir_202107.tif)
Raster specifications

CRS: WGS 84 (EPSG:4326)
Pixel size: 0.00025° (about 30 m)
Size: 4004 × 4004 pixels (the 1° tile plus a small overlap with neighbouring tiles)
Extent: 5.0005°W – 3.9995°W, 39.9995°N – 41.0005°N
Compression: ZSTD (predictor 2)
Spectral bands: UInt16, NoData = 65000. Surface reflectance = DN / 40000.
Thermal: UInt16, NoData = 65000, scale =1/ 100
Quality: Byte
Quality layer codes

Value    Meaning
0    Water
1    Temporal aggregation
2    Temporal aggregation
3    Gap-filled with SoftImpute (matrix completion)
4    Remaining gap (not filled)
Use the quality layer to tell direct observations apart from gap-filled values, or to mask water and unfilled pixels.

Intended use

This tile is a lightweight sample of the full product. The final product is about 19,132 tiles