Name: SeaSat ESA archive
Creator: European Space Agency

Active Remote Sensing

Imaging Radars

Seasat

Atmosphere

Atmospheric Water Vapour

Cryosphere

Geomorphic Landforms and Processes

Land Surface

Ocean Circulation

Ocean Waves

Oceans

Sea Ice

Sea Surface Topography

Solid Earth

Topography

This collection gives access to the complete SEASAT dataset acquired by ESA and mainly covers Europe. The dataset comprises some of the first ever SAR data recorded for scientific purposes, reprocessed with the most recent processor.
The Level-1 products are available as:

<ul>
	<li>SAR Precision Image&nbsp;[SEA_PRI_1P]</li>
	<li>SAR Single Look Complex Image&nbsp;[SEA_SLC_1P]</li>
	<li>SAR Ellipsoid Geocoded Precision Image [SEA_GEC_1P]</li>
</ul>

Spatial coverage:&nbsp;Check the spatial coverage of the collection on a&nbsp;<a href="https://tpm-ds.eo.esa.int/smcat/Seasat/" target="_blank">map</a>&nbsp;available on the Third Party Missions Dissemination Service.&nbsp;

European Space Agency, Seasat SAR Precision L1 Image Version 1.0.

European Space Agency, Seasat SAR Single Look Complex L1 Image Version 1.0.

European Space Agency, Seasat SAR Ellipsoid Geocoded Precision L1 Image Version 1.0.

JERS/SeaSat SAR Products CEOS Format Specifications

SeaSat views oceans and sea ice with Synthetic Aperture Radar

SeaSat SAR IPF Data and Processing Issues

Get Help?

The GEOSAT-2 Spain Coverage collection consists of imagery covering Spain, including the Balearic and Canary islands, acquired by GEOSAT-2 between March and November of 2021.

<figure class="centered-mobile-centered"><a data-lightbox="Spatial coverage of the 2021 collection." data-title="Spatial coverage of the 2021 collection." href="/documents/d/earth-online/spatial-coverage-of-the-2021-collection"><img alt="Spatial coverage of the 2021 collection." class="centered-mobile-centered" src="/documents/d/earth-online/spatial-coverage-of-the-2021-collection-tm" /> </a>

<figcaption><a href="/documents/d/earth-online/spatial-coverage-of-the-2021-collection">Spatial coverage of the 2021 collection.</a></figcaption>
</figure>

The available imagery have a geolocation accuracy of &lt; 4 m RMSE, a cloud cover percentage of &lt; 10 %, and were acquired at an off-nadir angle from -30° to 30°.&nbsp;

The following product types are available:

<ul>
	<li>Pan-sharpened: A four-band image, resulting from adding the information of each multispectral band to the panchromatic band. The fusion does not preserves all spectral features of the multispectral bands, so it should not be used for radiometric purposes. Resolution 1 m; Bands: All.</li>
</ul>

<ul>
	<li>Bundle: Panchromatic (1 m resolution) + Multispectral bands (4 m resolution): five-band image containing the panchromatic and multispectral products packaged together, with band co-registration.</li>
</ul>

The available processing level is L1C orthorectified: a calibrated and radiometrically corrected product, manually orthorectified and resampled to a map grid.

<table class="eogtable">
	<caption></caption>
	<tbody>
		<tr>
			<td class="eogtable-heading">Property</td>
			<td class="eogtable-heading">Spatial Resolution</td>
		</tr>
		<tr>
			<td>Pan-sharpened</td>
			<td>1.0 m</td>
		</tr>
		<tr>
			<td>Bundle (PAN + MS)</td>
			<td>1.0 m (PAN), 4.0 m (MS)</td>
		</tr>
	</tbody>
</table>

GEOSAT-2 Spain Coverage

The Dragon 6 Cooperation Call is now open, with a proposal submission deadline of 11 December 2023.

Announcement of Opportunity for Dragon 6

This collection is composed of a subset of ALOS-1 PRISM (Panchromatic Remote-sensing Instrument for Stereo Mapping) OB1 L1C products from the <a href="https://earth.esa.int/eogateway/catalog/alos-prism-l1c">ALOS PRISM L1C collection</a> (DOI: 10.57780/AL1-ff3877f) which have been chosen so as to provide a cloud-free coverage over Europe. 70% of the scenes contained within the collection have a cloud cover percentage of 0%, while the remaining 30% of the scenes have a cloud cover percentage of no more than 20%.

The collection is composed of PSM_OB1_1C EO-SIP products, with the PRISM sensor operating in OB1 mode with three views (Nadir, Forward and Backward) at 35 km width.

ALOS PRISM L1C European Coverage Cloud Free

The FSSCat collection provides hyperspectral data coverage over a number of locations around the world, as measured by the HyperScout 2 sensor.

The FSSCat hyperspectral data products are comprised of 50 spectral bands, covering a spectral range of 450 – 950 nm with a spectral resolution of 18 nm (at FWHM). Imagery is available with an along-track ground sampling distance (GSD) of 75 m. To ensure a high degree of radiometric accuracy, HyperScout 2 data are validated through comparison with Sentinel-2 data products.

The processing level of the data is L1C – calibrated top-of-atmosphere radiance, reflectance or brightness temperature. The raster type of the L1C data product is a GRID – a 2D or 3D raster where the (geo)location of the data is uniquely defined by the upper left pixel location of the raster and the pixel size of the raster, and the projection parameters of the raster (if georeferenced). The third dimension can e.g. be a spectral or third spatial dimension.

The L-1C VNIR data product includes a hyperspectral cube of TOA reflectance in the VNIR range, as well as relevant meta-data that adheres to EDAP's best practice guidelines. This product consists of georeferenced and ortho-rectified image tiles that contain spectral reflectance data at the top-of-the-atmosphere. Each image tile contains radiometrically corrected and ortho-rectified band images that are projected onto a map, as well as geolocation information and the coordinate system used. Additionally, each image pixel provides TOA spectral reflectance data in scaled integers, conversion coefficients for spectral radiance units, viewing and solar zenith and azimuth angles, and quality flags.

FSSCat products

In cooperation with CONAE (Comisión Nacional de Actividades Espaciales), ESA is launching an Announcement of Opportunity for the international scientific community to access data from the SAOCOM mission for science and EO-based applications development.

Announcement of Opportunity for SAOCOM

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