|Date of Launch:|
|19 June 2014|
Deimos-2 full archive and new tasking products are available at up to 0.75m resolution as:
|Pan-sharpened 4 bands||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.|
|Pan-sharpened 321 Natural Colours|
|Pan-sharpened 432 False Colours|
|Panchromatic||Single-band image coming from the panchromatic sensor.|
|Multispectral||Four-band image coming for the multispectral sensor, with band co-registration.|
|Bundle||Panchromatic + Multispectral bands: five-band image containing the panchromatic and multispectral products packaged together, with band co-registration.|
|Stereo Pair||Obtained from two acquisitions of the same target performed from different viewpoints in the same pass by using the agility feature of the platform. It can be provided as a pair of pan-sharpened or panchromatic images.|
The image products for Deimos-2 are delivered in GeoTIFF image format by default. JPEG-2000 format is also available on demand.
Processing levels are the following:
|Product Type||Processing Level and Spatial Resolution||Spectral Bands|
|L1B (native)||L1C (ortho)|
|Pan-sharpened||1.0m||0.75m||All||R, G, B||NI, R, G|
|Pan||1.0m||0.75m||Only Pan band|
|MS||4.0m||3.00m||Only MS band|
|Bundle (PAN+MS)||1.0m (P), 4.0m (MS)||0.75m (P), 3.0m(MS)||All|
90 N, 90 S, 180 W, 180 E
|Temporal coverage:||July 2014 - Present|
The objective of the ESA TropForest project was to create a harmonised geo-database of ready-to-use satellite imagery to support 2010 global forest assessment performed by the Joint Research Centre (JRC) of the European Commission and by the Food and Agriculture Organization (FAO). Assessments for year 2010 were essential for building realistic deforestation benchmark rates at global to regional levels.
To reach this objective, the project aimed to create a harmonised ortho-rectified/pre-processed imagery geo-database based on satellite data acquisitions (ALOS AVNIR-2, DEIMOS-1 SLIM6, KOMPSAT-2 MSC) performed during year 2009 and 2010, for the Tropical Latin America (excluding Mexico) and for the Tropical South and Southeast Asia (excluding China), resulting in 1971 sites located at 1 deg x 1 deg geographical lat/long intersections. The project finally delivered 1866 sites (94.7% of target) due to cloud coverages too high for missing sites:
Available products in TropForest dataset (dark green, light green and blue circles)
|Temporal coverage:||2009 - 2010|
|Date of Launch:|
|1 March 2002|
|Out of service since May 2012|
|5 - 1150 km|
The MERIS Level 1b product is given in radiance units [W sr-1 m-2 micrometers-1] after scaling.
The in-band reference irradiances for the 15 MERIS bands are computed by averaging the in-band solar irradiance of each pixel. The in-band solar irradiance of each pixel is computed by integrating the reference solar spectrum with the band-pass of each pixel. The 15 sun spectral flux values provided in the "GADS Scaling" record of the Level 1b products are the in-band reference irradiances adjusted for the Earth-sun distance at the time of measurement.
The band-pass of each pixel is derived from on-ground and in-flight characterisation via an instrument model. The values "Band wavelength" and "Bandwidth" provided in the SPH of the Level 1b products are the averaged band-pass of each pixel over the instrument field of view.
Auxiliary data include: Orbit state vector, Time correlation parameters, Latitude, Longitude, altitude and topographic corrections, Sun azimuth, Sun elevation, view azimuth, view elevation, dataMean Sea Level pressure, Total column ozone, Total column water vapour, Wind speed.
The Level 1b FRS product covers the complete instrument swath. The product duration is not fixed and it can span up to the time interval of the input Level 0. Thus the estimated size of the Level 1B FRS is dependent on the start/stop time of the acquired segment.
90 N, 90 S, 180 W, 180 E
|Temporal coverage:||2002-05-17 - 2012-04-08|
Sentinels helping to map minerals
20 March 2018
The traditional way of mapping Earth's geology and mineral resources is a costly and time-consuming undertaking. While satellites cannot entirely replace the expert in the field, they can certainly help – as a recent effort in Africa shows.
Geological maps identify different types of rock, faults, groundwater and deposits. They are not only essential for building infrastructure and assessing risk, but also important for locating and mining natural resources.
ESA has recently supported a pan-African initiative to collect, interpret and disseminate satellite information on geology and mineral resources such as metallic ores.
This ESA-funded effort has paved the way for the German geo-information company GAF to help the African Mineral Geoscience Initiative. The aim of initiative, which is led by the African Union Commission and supported by the World Bank Group, is to catalogue Africa's geology and mineral resources.
Monocle, water quality over inland and transitional waters
The recently started Multiscale Observation Networks for Optical monitoring of Coastal waters, Lakes and Estuaries (MONOCLE) project aims at an improved characterisation of water-leaving reflectance and water quality over inland and transitional waters, such as river deltas and estuaries, at multiple spatial scales.
The combination of satellite and drone imagery with additional in-situ observations will enable improved Total Suspended Matter (TSM) and chlorophyll-a retrievals at maximised spatio-temporal resolution. These improved retrievals will be beneficial to various end-user groups, such as the water modelling community.
An example of river sediment transport is given in this Proba-V 100 m image of 01 April 2017, which shows the Danube river flowing into the Black Sea in north-east Romania, one of MONOCLE's study areas. The light-blue whirls just off-shore indicate substantial amounts of sediments from the Danube outflow.
The green-brown area is the Danube Delta Biosphere Reserve, a 6,300 km2 area with numerous lakes, ponds, small islands, and wetlands. The area gives home to more than 300 bird and about 90 fish species.
© ESA-BELSPO 2017, produced by VITO
View large version of this image
ESA testing detection of floating plastic litter from orbit
19 March 2018
The millions of tonnes of plastic ending up in the oceans every year are a global challenge. ESA is responding by looking at the detection of marine plastic litter from space, potentially charting its highest concentrations and understanding the gigantic scale of the problem.
We dump around 10 million tonnes of plastic in the oceans annually. Though most conspicuous along coastlines, plastic litter is also found out in the open ocean and from the equator to the pole – even frozen in polar ice.
Gradually broken down into micro-fragments by weathering and waves, it is not only endangering marine animals but it is also entering the global food chain, with unknown long-term consequences for animal life and our own health.
SMOS data dissemination - maintenance on 20 March 2018
19 March 2018
Extended coverage of the Swarm 2 Hz EFI LP extended dataset
16 March 2018
We would like to inform the Swarm users that the 2 Hz Langmuir Probes extended dataset coverage has been increased in the ESA FTP server. The time coverage will be updated on a daily basis. Data now cover the time interval from 02 December 2013 to the current date - 14 days for all Swarm spacecraft.
Improved version of the Swarm 16 Hz faceplate dataset (v.0201) now available
16 March 2018
We are pleased to inform the Swarm users that an improved version of the Swarm 16 Hz faceplate density dataset (Product Baseline and File Counter 0201) is now available in the /Advanced/Plasma_Data/16_Hz_Faceplate_plasma_density folder on the Swarm FTP server.
Data contain corrected geodetic coordinates and faceplate area. The time coverage will be updated on a daily basis. Data now cover the period from 02 October 2014 to the current date - 14 days for all three spacecraft.