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(total 1951)
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ICOS Atmospheric Thematic Center
from 2010-12-31 until 2012-05-20 with 4 records
The Atmospheric Thematic Center (ATC) is one of the four central facilities of ICOS. The ATC central facility is needed to ensure that all the data generated by ICOS atmospheric stations in Europe and globally are treated harmoniously and are properly archived for the long term, that the atmospheric stations can receive operational, timely support, and to maintain a technological and scientific watch over new measurements techniques. The ATC is currently under construction.
from 2010-12-31 until 2012-05-20 with 4 records
ASAR Image Mode source packets Level 0 (ASA_IM__0P)
from 2002-10-18 until 2012-03-29 with 15945 records
The ASAR Image Mode source packets Level 0 data product offers Level 0 data for possible images processing on an other processing site. It includes some mandatory information for SAR processing. The Image Mode Level 0 product consists of time-ordered Annotated Instrument Source Packets (AISPs) collected while the instrument is in Image Mode. The echo samples contained in the AISPs are compressed to 4 bits/sample using Flexible Block Adaptive Quantisation (FBAQ). This is a high-rate, narrow swath mode so data is only acquired for partial orbit segments and may be from one of seven possible image swaths. The Level 0 product is produced systematically for all data acquired within this mode. This product provides a continuation of the ERS-SAR_RAW product.
from 2002-10-18 until 2012-03-29 with 15945 records
ENVISAT ASAR Image Mode Precision Image (ASA_IMP_1P)
from 2008-04-27 until 2011-04-09 with 9 records
This is a multi-look, ground range, digital image generated from Level 0 data collected when the instrument is in Image Mode (7 possible swaths HH or VV polarisation). The product includes slant range to ground range correction. It is for users wishing to perform applications-oriented analysis and applies to multi-temporal imaging and to derive backscattering coefficients. The stand-alone image is generated using the Range/Doppler algorithm. The processing uses up to date (at time of processing) auxiliary parameters corrected for antenna elevation gain, and range spreading loss. Engineering corrections and relative calibration are applied to compensate for well-understood sources of system variability. Absolute calibration parameters, when available (depending on external calibration activities) are provided in the product annotations. This product provides a continuation of the ERS-SAR_PRI product.
from 2008-04-27 until 2011-04-09 with 9 records
ENVISAT ASAR Image Mode Single Look Complex Image (ASA_IMS_1P)
from 2003-03-12 until 2012-02-26 with 214 records
The ASAR Image Mode Single Look Complex Image represents a single-look, complex, slant-range, digital image generated from Level 0 ASAR data collected when the instrument is in image mode. Seven possible swaths in HH or VV polarisation are available. The product is primarily intended for use in SAR quality assessment and calibration, and can be used to derive higher level products. The spatial coverage is about 100 km along track and 100 km across track, and the radiometric resolution is 1 look in azimuth, 1 look in range. The file size is 741 Mbytes. It is worth highlighting that Azimuth pixel spacing depends on Earth-Satellite relative velocity and actual PRF and slant range pixel spacing is given by ASAR sampling frequency (19.208 Mhz).
from 2003-03-12 until 2012-02-26 with 214 records
ASAR Wide Swath Level 0 product (ASA_WS__0P)
from 2004-02-19 until 2010-09-12 with 476 records
The WS Mode Level 0 product consists of time-ordered AISPs collected while the instrument is in WS Mode. The echo samples in the AISPs have been compressed to 4 bits/sample using FBAQ. This is a high-rate, wide swath (ScanSAR) mode so data is only acquired for partial orbit segments and is composed of data from five image swaths (SS1 to SS5). The Level 0 product is produced systematically for all data acquired within this mode.
from 2004-02-19 until 2010-09-12 with 476 records
ENVISAT ASAR Wide Swath Mode (ASA_WSM_1P)
from 2010-01-25 until 2011-03-20 with 3 records
from 2010-01-25 until 2011-03-20 with 3 records
ENVISAT ASAR Wide Swath Single Look Complex (ASA_WSS_1P)
from 2009-09-04 until 2010-01-25 with 10 records
To date, the only operational Level-1B data product offered by ESA from the ASAR Wide-Swath Mode (WSM) has been the multi-look detected product (ASA_WSM_1P), intended to support applications that exploit intensity data. In order to support the development of new applications with the ASAR ScanSAR data, a new WSM product providing phase information has been developed and implemented in the ESA ASAR processor, the Wide-Swath Single-Look complex product (ASA_WSS_1P). It is expected that this new product will be mainly used for INSAR applications based either on wide-swath/wide-swath pairs or wide-swath/image mode pairs, applications of ocean current mapping, large-area ocean wave retrievals, and atmospheric water vapour characterisation. It shall be mentioned that the standard ESA WSS product is based on the prototype WSS processor developed by Polimi/Poliba, which has also been used to generate prototype products for testing the potential and preparing the exploitation of the new WSS product (see the first ASAR WSM-WSM interferogram). The new ESA ASA_WSS_1P product is now available as standard ENVISAT ASAR product and it can be ordered using EOLI-SA. Please contact the Earth Observation Help Desk Team for further details.
The ASA_WSS_1P product format is slightly different from other ASAR products since:
there are 5 different MDSs, one per sub-swath
a "Doppler Grid" ADS has been included to support ocean current mapping applications
there are 5 records in the MPP ADS, one per sub-swath
there are 5 records in the SQ ADS, one per sub-swath
Other key characteristics of the ASA_WSS_1P product are summarised below:
processing is fully phase preserving
data in the MDSs is sampled in a common grid both in range and in azimuth
standard product is 60 sec long with 80 m az. pixel spacing
auxiliary timeline information has been added in the Main Processing Parameters ADS
elevation antenna pattern correction is applied by default (although the product is a single-look complex)
from 2009-09-04 until 2010-01-25 with 10 records
ERS-1 SAR Image Mode source packets Level 0 (ER01_SAR_IM__0P)
from 1992-04-14 until 2012-02-16 with 1651 records
The SAR Image Mode source packets Level 0 data product offers Level 0 data for possible images processing on an other processing site. It includes some mandatory information for SAR processing. The Image Mode Level 0 product consists of time-ordered Annotated Instrument Source Packets (AISPs) collected while the instrument is in Image Mode. The echo samples contained in the AISPs are compressed to 4 bits/sample using Flexible Block Adaptive Quantisation (FBAQ). This is a high-rate, narrow swath mode so data is only acquired for partial orbit segments. The Level 0 product is produced systematically for all data acquired within this mode.
from 1992-04-14 until 2012-02-16 with 1651 records
ERS-1 SAR Precision Image Product (ER01_SAR_IMP_1P)
from 1992-11-12 until 1996-05-18 with 10 records
The Precision Image is a multi-look (speckle-reduced), ground range image. The product is calibrated and corrected for the SAR antenna pattern and range-spreading loss: radar backscatter can be derived from the product for geophysical modelling, but no correction is applied for terrain-induced radiometric effects. The image is not geocoded, and terrain distortion (foreshortening and layover) has not been removed. Numbering sequence is relative to the satellite position, and so a different position for the Ascending and Descending scenes. These are 3-looks Precision Images, suitable for calibration purposes.
from 1992-11-12 until 1996-05-18 with 10 records
ERS-1 SAR Single Look Complex Image Product (ER01_SAR_IMS_1P)
from 1992-05-02 until 1999-11-02 with 130 records
This product presents SAR data following preprocessing, but retains every sample as complex data. The product is single-look (i.e. no speckle reduction by multi-look processing) and in slant range. Phase continuity is preserved within the image. Three areas of application are testing of SAR processing algorithms, development of techniques using phase preservation, e.g. SAR interferometry, and application of SAR post-processing algorithms, e.g. geocoding from complex, slant-range data.
from 1992-05-02 until 1999-11-02 with 130 records
ERS-1 SAR Image SAR Annotated Raw Data Product Level 0 (ER01_SAR_RAW_0P)
from 1991-08-13 until 2012-05-07 with 2872 records
The SAR Annotated Raw Data product consists of the SAR telemetry data corresponding to 16 seconds of data collection; it also contains all required auxiliary data necessary for data processing. It is primarily used for testing the ERS-1 SAR processors independently from the HDDR system and for users interested in full SAR data processing.
from 1991-08-13 until 2012-05-07 with 2872 records
ERS-2 SAR Image Mode source packets Level 0 (ER02_SAR_IM__0P)
from 1995-05-31 until 2012-02-16 with 2769 records
The SAR Image Mode source packets Level 0 data product offers Level 0 data for possible images processing on an other processing site. It includes some mandatory information for SAR processing. The Image Mode Level 0 product consists of time-ordered Annotated Instrument Source Packets (AISPs) collected while the instrument is in Image Mode. The echo samples contained in the AISPs are compressed to 4 bits/sample using Flexible Block Adaptive Quantisation (FBAQ). This is a high-rate, narrow swath mode so data is only acquired for partial orbit segments. The Level 0 product is produced systematically for all data acquired within this mode.
from 1995-05-31 until 2012-02-16 with 2769 records
ERS-2 SAR Precision Image Product (ER02_SAR_IMP_1P)
from 1995-07-09 until 2010-01-26 with 40 records
The Precision Image is a multi-look (speckle-reduced), ground range image. The product is calibrated and corrected for the SAR antenna pattern and range-spreading loss: radar backscatter can be derived from the product for geophysical modelling, but no correction is applied for terrain-induced radiometric effects. The image is not geocoded, and terrain distortion (foreshortening and layover) has not been removed. Numbering sequence is relative to the satellite position, and so a different position for the Ascending and Descending scenes. These are 3-looks Precision Images, suitable for calibration purposes.
from 1995-07-09 until 2010-01-26 with 40 records
ERS-2 SAR Single Look Complex Image Product (ER02_SAR_IMS_1P)
from 1995-05-26 until 2011-04-22 with 2369 records
This product presents SAR data following preprocessing, but retains every sample as complex data. The product is single-look (i.e. no speckle reduction by multi-look processing) and in slant range. Phase continuity is preserved within the image. Three areas of application are testing of SAR processing algorithms, development of techniques using phase preservation, e.g. SAR interferometry, and application of SAR post-processing algorithms, e.g. geocoding from complex, slant-range data.
from 1995-05-26 until 2011-04-22 with 2369 records
ERS-2 SAR Image SAR Annotated Raw Data Product Level 0 (ER02_SAR_RAW_0P)
from 1995-09-13 until 2010-01-18 with 11314 records
The SAR Annotated Raw Data product consists of the SAR telemetry data corresponding to 16 seconds of data collection; it also contains all required auxiliary data necessary for data processing. It is primarily used for testing the ERS-1 SAR processors independently from the HDDR system and for users interested in full SAR data processing.
from 1995-09-13 until 2010-01-18 with 11314 records
Etna Volcanic Ash Campaign
from 2010-10-20 until 2010-10-20
During an active periode of Mt. Etna, Sicily / Italy in October 2010 a reseach flight of the DLR Falcon was carried out.
Sulfur dioxide and other trace gases where measured in situ.
from 2010-10-20 until 2010-10-20
DORIS Preliminary orbit state vectors (DOR_POR_AX)
from 2006-10-27 until 2012-04-08 with 1962 records
from 2006-10-27 until 2012-04-08 with 1962 records
Observation Aircraft Flight Tracks
from 2003-07-09 until 2010-05-03
from 2003-07-09 until 2010-05-03
Tropical Convection, Cirrus and Nitrogen Oxides
Experiment / TROCCINOX 2004
from 2004-02-01 until 2004-03-31
The composition of the atmosphere, the stratospheric ozone layer, and the state of the global climate depend crucially on processes in the tropical regions, in particular at the tropical tropopause. The research project TROCCINOX investigates the impact of tropical deep convection on the distribution and the sources of trace gases, cloud and aerosol particles focusing on processes in the upper troposphere and lower stratosphere. The general objectives of TROCCINOX are:
to improve the knowledge about lightning-produced NOx (LNOx) in tropical thunderstorms by quantifying the produced amounts, by comparing it to other major sources of NOx and by assessing its global impact, and
to improve the current knowledge on the occurrence of other trace gases (including water vapour) and particles (ice crystal and aerosols) in the upper troposphere and lower stratosphere in connection with tropical deep convection as well as large scale upwelling motions
The scientific objectives of TROCCINOX are addressed by performing field experiments in the tropics including measurements on different spatial scales. Two fully instrumented research aircraft, the Russian M55 Geophysica and DLRs Falcon probe the large scale structure of the upper troposphere and lower stratosphere during transfer flights to and from Brazil. In co-operation with Brazilian partners (IPMET, UNESP, INPE) the aircraft operations are co-ordinated with detailed ground-based and space borne systems. Numerical modelling of the observed processes are carried out in order to improve understanding and quantification of the observed processes and assessments of their global impacts.
During a first field campaign in February and March 2004 the Falcon was deployed to Brazil. An intense measuring campaign centered around Bauru in the State of Sao Paulo was co-ordinated with the EU sponsored HIBISCUS project and the Brazilian TroCCiBras project which is coordinated by IPMET.
The second TROCCINOX campaign is perforned during January and February 2005, again locally based in Sao Paulo State. Both TROCCINOX aircraft, theGeophysica and the Falcon, are operated out of Aracatuba airport in co-ordination with a Brazilian Bandeirante aircraft. Ground based observatons b IPMET weather radar network and DLR lightning detection system complete the information on thunderstorm occurrence.
TROCCINOX is part of the VINTERSOL cluster of projects dedicated to the Validation of INTERnational Satellites and study of Ozone Loss under the European Ozone Research Coordination Unit (EORCU).
Web: http://www.pa.op.dlr.de/troccinox/
from 2004-02-01 until 2004-03-31
Tropical Convection, Cirrus and Nitrogen Oxides
Experiment / TROCCINOX 2005
from 2005-01-01 until 2005-02-28
The composition of the atmosphere, the stratospheric ozone layer, and the state of the global climate depend crucially on processes in the tropical regions, in particular at the tropical tropopause. The research project TROCCINOX investigates the impact of tropical deep convection on the distribution and the sources of trace gases, cloud and aerosol particles focusing on processes in the upper troposphere and lower stratosphere. The general objectives of TROCCINOX are:
to improve the knowledge about lightning-produced NOx (LNOx) in tropical thunderstorms by quantifying the produced amounts, by comparing it to other major sources of NOx and by assessing its global impact, and
to improve the current knowledge on the occurrence of other trace gases (including water vapour) and particles (ice crystal and aerosols) in the upper troposphere and lower stratosphere in connection with tropical deep convection as well as large scale upwelling motions
The scientific objectives of TROCCINOX are addressed by performing field experiments in the tropics including measurements on different spatial scales. Two fully instrumented research aircraft, the Russian M55 Geophysica and DLRs Falcon probe the large scale structure of the upper troposphere and lower stratosphere during transfer flights to and from Brazil. In co-operation with Brazilian partners (IPMET, UNESP, INPE) the aircraft operations are co-ordinated with detailed ground-based and space borne systems. Numerical modelling of the observed processes are carried out in order to improve understanding and quantification of the observed processes and assessments of their global impacts.
During a first field campaign in February and March 2004 the Falcon was deployed to Brazil. An intense measuring campaign centered around Bauru in the State of Sao Paulo was co-ordinated with the EU sponsored HIBISCUS project and the Brazilian TroCCiBras project which is coordinated by IPMET.
The second TROCCINOX campaign is perforned during January and February 2005, again locally based in Sao Paulo State. Both TROCCINOX aircraft, theGeophysica and the Falcon, are operated out of Aracatuba airport in co-ordination with a Brazilian Bandeirante aircraft. Ground based observatons b IPMET weather radar network and DLR lightning detection system complete the information on thunderstorm occurrence.
TROCCINOX is part of the VINTERSOL cluster of projects dedicated to the Validation of INTERnational Satellites and study of Ozone Loss under the European Ozone Research Coordination Unit (EORCU).
Web: http://www.pa.op.dlr.de/troccinox/
from 2005-01-01 until 2005-02-28
Examples
Examples
Gravity and Bathymetry in Haiti
MERIS Full Swath over Somalia (last April)
Sea Surface Temperature over the Mediterranean (1st January 2011)
Radar Altimeter Istanbul (Jan to May 2011)
GENESI-DEC is a European Commission Seventh Framework Programme co-funded project.
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