The Advanced Earth Surface Observation Project (AESOP): New Developments for

Optical Imagery

Sébastien Leprince, Francois Ayoub, Jiao Lin,Jean-Philippe Avouac, Dave Redding, and Essam Heggy

November 12, 2012

New Technology Developments:

• Extraction of 3D ground motion using multi-angle imagery,

• Topography extraction using multi-angle imagery,

• 3D tracking of smooth surface from point clouds (LiDAR) - see B. Conejo’s poster,

• Time-series of sand flux on Mars - see F. Ayoub’s poster,

• Integration of processing tools with parallel implementation,

• Feasibility study of a geostationary optical seismometer. Development at JPL with Dave Redding team,

• Sounding the water table and fossil aquifers in Kuwait using airborne Ground Penetrating Radar - see E. Heggy’s poster.

Multiple Disparity Maps can be Triangulated to Retrieve 3D displacement fields

El-Mayor Cucapah, 3D displacement field using Worldview

LiDAR validation:

see poster!

Improvement of Correlation Algorithms for High-Resolution DSM Extraction: Urban topography validated with LiDAR

Worldview DSM generated with COSI-Corr 1m GSD LiDAR DSM, 1m GSD

Validation profiles:

Work with Jiao Lin, with parallel implementation

and web interface, on-going work.

Imaging Seismic Waves from Geo: The GSI Concept• <2 cm/s resolution on 200 m grid• 1-2 Hz frame rate• Up to 300 km2 FoV• Telescope is pointed in response to events detected

on the ground• Stationed in GEO over the Pacific coast of the

Americas, could observe 1 to 4 Mv > 6 earthquakes per year

For 10 year missions

For 10 year missions

Scene cm

0 km 8km 16km 8 km 16km 8km 16km

True dy

Th

e G

reat

C

alif

orn

ia S

hak

eou

t

Estimated dy Simulation of GSI Imaging and Data Processing

• Surface deformation movies reveal rupture propagation, enabling correlation of ground motion to subsurface geology

• GSI data would revolutionize earthquake seismology

3.75m6 Segment

3.6m—On Axis1 Monolithic Segment

• 5.2-5.7 Gpix.• FPA Width: 72k-75k pix.• GSD ~4 m

Slide courtesy of D. Redding, NASA/JPL

Sub-surface Imaging of Fossil Aquifers in Kuwait