MODELOS DIGITALES DEL TERRENO MDT MODELOS DIGITALES DE ELEVACIÓN MDE MODELOS DIGITALES DE SUPERFICIE MDS

Sistemas Satelitales de Percepción Remota Sistema Activos: RADAR - Mapeo Topográfico por Radar (SRTM)

12.Geoinformación en Internet 2012_SRTM_WebDatabase_CGIAR Modelos 3D

Tendencias en la Percepción Remota - Sensores hiperespectrales y muy alta resolución espacial. - RADAR y LASER para la producción de Modelos Digitales del Terreno (relieve y coberturas!). - Equipos de menores costos para estudios locales integrando tecnologías diversas (FAPEF-Video-GPS). SRTM: datos para análisis del terreno en SIG

Tendencias en la Percepción Remota - RADAR para la producción de Modelos Digitales del Terreno (relieve y coberturas).

Quimilí

Barredores LASER (LIDAR) - LASER para la producción de Modelos Digitales del Terreno (relieve y coberturas!). LASER - LIDAR: Light Detection and Ranging

CGIAR-CSI SRTM 90m DEM Digital Elevation Database http://srtm.csi.cgiar.org/

CGIAR-CSI SRTM 90m DEM Digital Elevation Database - http://srtm.csi.cgiar.o

CGIAR-CSI SRTM 90m DEM Digital Elevation Database - http://srtm.csi.cgiar.o

CGIAR-CSI SRTM 90m DEM Digital Elevation Database - http://srtm.csi.cgiar.o

38 MB

CGIAR-CSI SRTM 90m DEM Digital Elevation Database http://srtm.csi.cgiar.org/

Status Report on DA-09-03d* (Global DEM datasets) Lorant Czaran on behalf of Jan-Peter Muller [email protected] Point-of-Contact, GEOSS Tasks DA-07-01 & DA-09-03d Chairperson, CEOS-WGCV Sub-group on Terrain mapping from satellites Chair, ISPRS WG IV/6: Global DEM Interperability Head, Imaging Group Director, UK NASA RPIF Professor of Image Understanding and Remote Sensing HRSC Science Team Member (ESA Mars Express 2003) Stereo Panoramic Camera Science Team Member (ESA EXOMARS) MODIS & MISR Science Team Member (NASA EOS Project) TerraSAR-X and TANDEM-X science team member (DLR-Astrium)

* Partially supported by BNSC under the ICP2 and ICP3 programmes

GEO Task DA-09-03d : Global DEM • •

Supported by BNSC-CEOS with Point of Contact: Prof. J-P Muller (CEOS-WGCV) and WGISS activities led by W. Cudlip (Qinetiq) Objectives are to – Facilitate interoperability among Digital Elevation Model (DEM) data sets with the goal of producing a global, coordinated and integrated 30m DEM of the Earth’s land surface and continental shelves • Envisaged ASTER GDEM to form the land part of this global 30m DEM • Continental shelf bathymmetry still a major issue, need for GEO pressure – This DEM database should be embedded into a consistent, high accuracy, and long term stable geodetic reference frame for Earth observation.

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Planned activities include: – Successive open calls for validation of ASTER GDEM quality (12/08, 4/09, 6/10) and presentation of results through online proceedings of workshops, subsequent peer review journals. – Open display of ASTER GDEM quality through the CEOS-WGISS ICEDS (3/10). – Open display of errors and artifacts through “Known Product Issues” web service (3/11). – Promotion of continental shelf bathymetry acquisition starting in north polar region through ESA/CSA MORSE programme (6/10).

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40 members involved in Task (UK, US, AU, DE, FR, IT, ES, JP, CN, KR, WMO, OGC)

Status-Overview : GEO DA-09-03d: Global DEM* • Validation of ASTER GDEM at 1 arc-second (≈30m) currently being completed by NASA/USGS with METI/ERSDAC. • USGS released an “Announcement of Collaborative Opportunity” on 2.12.08 with a closing date for proposals of 7.1.09. 21 non-US groups submitted validation results by 21 March 2009 • JPM evaluated ASTER GDEM quality for 5 tiles (maximum permitted), 4 of which were over CEOS-WGCV test sites • Around 1% of the total 22,495 tiles have been evaluated by these 21 groups outside of the US and around 3% by NGA and USGS • USGS hope to have joint validation report completed in the next few months for possible release of the ASTER GDEM no earlier than June 2009 • Current METI/NASA release policy states limits on the maximum number of tiles permitted for each order although all data will be free • Only 1º x 1º tiles to be released to registered users through ERSDAC and USGS-EDC. Conditions on subsequent use not known at present time * thanks to Bryan Bailey for providing this in difficult circumstances

GDEM Stacking Number

0 Michael Abrams, JPL

10 5 15 Stacking Number

ISRSE, Stresa, Italy, May 2009

20

Susquehanna Test Site

10 – 22 Scenes

1 – 9 Scenes

Prototype ASTER GDEM

Michael Abrams, JPL

Number of Scenes Used to Produce Prototype ASTER GDEM ISRSE, Stresa, Italy, May 2009

ASTER intercomparison over CEOS-WGCV North Wales site

Example of ASTER vs GPS vs SRTM vs BlueSky vs GLC2000