presentación de powerpoint - un-spider uni...volcano inflation glacial movement técnicas avanzadas...
TRANSCRIPT
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Istituto per il Rilevamento Elettromagnetico dell'Ambiente,
Consiglio Nazionale delle Ricerche IREA-CNR
Università di Napoli "Parthenope"
Interferometría Diferencial de Radar de
Apertura Sintética -DinSAR-, retos y
oportunidades para Guatemala
Fernando Monterroso
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Contenido
• Radar de Apertura Sintética
• Interferometria Diferencial de Radar de
Apertura Sintética (DInSAR)
• Técnicas avanzadas de DInSAR (SBAS)
• Plataformas de explotación (ESA G-POD y
GEP).
• Retos y Experiencias para Guatemala.
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Teledetección (Remote Sensing)
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Imagenóptica Imagen Radar SIR-C/X-SAR
Capacidad de “Observar” incluso en
presencia de nubes
Casu F. 2017
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Imagine radar
Radar de Apertura Sintética
www.irea.cnr.it
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Kilauea caldera, Hawaii
Las pendientes orientadas
hacia el satélite tienen una
retrodispersión brillante
Retrodispersión
oscura y / o
sombreado
Flightdirection
Lookdirection
Gareth Funning (2015) UNAVCO
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Escenario DInSARInterferogram
3/2000-7/2000
Napoli Bay,
Campi Flegrei
S2 (t2)
S1 (t1)
-2/
Baseline
Background
www.irea.cnr.it
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Principales Aplicaciones
GarethFunning (2015) UNAVCO
Earthquake deformationLand subsidence
Glacial movementVolcano inflation
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Técnicas Avanzadas de DInSAR
Persistent Scatter (PS) y Small Base Line (SBAS)
www.irea.cnr.it
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Exploiting the existing SAR huge data archives, we can move from the
analysis of single deformation events to the generation of time-series.
Inte
rfe
rog
ram
s
<-1
Napoli bay area (1992-2010)
<-1.5 >1.5
Deformation Velocity [cm/y]
The SBAS algorithm
Berardino et al., 2002, IEEE Trans. Geosci. RemoteSens.
Pepe et al., 2005, IEEE Trans. Geosci. RemoteSens.www.irea.cnr.it
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Algunos ejemplos de análisis de
deformación
Casu F. 2017
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Zinno, 2016
Pasado, presente y futuro
Constelaciones de Satélites de Radar
swath width: ≈ 100 km
revisit time: ≈ monthly
swath width: ≈ 40 km
revisit time: 4 - 11 days
swath width: ≈ 250 km
revisit time: 12 - 6 days
Sentinel
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Sentinel-1 constellation
Sentinel-1A Sentinel-1B Sentinel-1A
Time6 days
12 days
•Sensor spatial resolution:15x4m
•Spatial coverage:∼250x250km (for IWS)
•C-band
•Global coverage
•Free and open data access
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Sentinel-1 constellation
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Earth Observation
Tools
Data Archives Computing Resources
Scientific Community
Web Portal
Satellite
Acquisition
Earth Surface Monitoring
ERS
ENVISAT
Sentinels
CSK
TSX
ALOS
Cloud
Grid
Federated
resources
P-SBAS, ROI_PAC,
StaMPS, DORIS,...
Exploitation Platforms: the ESA Grid Processing
On-Demand (G-POD) and Geohazards
Exploitation Platform (GEP).
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EO data storage: ERS, ENVISAT, Sentinel (SciHub)
Computation: Cloud and GRID (G-POD)
Processing tools: SBAS, ROI_PAC, StaMPS, …
BiDS 2016, Santa Cruz de Tenerife/Ivanna Zinno (IREA CNR)
ESA Geohazard Exploitation Platform
(GEP)
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Results provided by P-SBAS
service within G-POD (Sentinel-1)
www.irea.cnr.it
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Generación automática de mapas de
desplazamiento
Check the earthquake
catalogues
Check the Sentinel-1
archives
Automatic start the P-SBAS
process (e.g. on ESA platforms)
Publish Results (Inteferograms
and Displacement maps)
The earthquake
occurs
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Co-Seismic Interferograms for Oaxaca, Mexico Earthquake Mw 7.2 (2018)
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Retos y experiencias para
Guatemala
www.irea.cnr.it
25052018-0606201825052018-06062018
27052018-0806201827052018-08062018
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JPL NASA UAVSAR
https://uavsar.jpl.nasa.gov/