Prof. Guo Huadong
Institute of Remote Sensing
Applications (IRSA) Chinese
Academy of Sciences (CAS)
P.O.Box 9718
Beijing 100101
China
Co-Investigators:
Wang Chao, CAS-IRSA
Shao Yun, CAS-IRSA
Multi-Parameter
SIR-C/X-SAR
for Geoscience Study in China
OBJECTIVES
Establish the backscatter models for the typical targets at the land surface and study
the penetration phenomena.
Develop the techniques for multi-frequency and multi-polarization
SAR
image processing
and specific geoscience information extraction.
Study the geology and mineralization both in arid and subtropic regions, the archaeology
and other geoscientific fields with the shuttle imaging radar.
Develop interferometric and polarimetric
SAR
data analysis methods and evaluate their
roles in geoscience study.
PROGRESS
Airborne campaign and real-time observation
during the
SIR-C/X-SAR
mission.
During the
SRL-1
mission, the Chinese airborne
SAR
campaign
was carried out simultaneously
at the Beijing test site. The truck-based scatterometer measurement
was performed
on the various kinds of land types. Meanwhile, the soil moisture
and crop phenologic parameters were observed. In the Inner Mongolia
test site, 12 corner reflectors
were deployed on the surface and in various depths of the sand sheets
for penetration
study.
Analysis of
SIR-C/X-SAR
data and ground-truth data
In the Inner Mongolia test site, the responses of the deployed corner
reflectors were
analyzed on the
SIR-C/X-SAR
images. The penetration depths
through the sand sheet
of multi-frequency radar signals were calculated and
explained. At the Beijing test
site, the truck-based scatterometer measurement was
used for calibration of Chinese airborne
CASSAR and
SIR-C
survey images over the Beijing site. The
cross-calibration is going
on. The relations between soil moisture, plant
water content, and CASSAR images were analyzed. At the
Zhaoqing site of south China,
SIR-C
data proved to be useful
for geological exploration in subtropic areas with
heavy vegetation cover. At the
Shandong site of the east China, an impact crater was
identified on the
SIR-C/X-SAR
images. At the Kunlun site of west China, a joint field
investigation was carried out with
JPL.
Using the
SIR-C
data, nine summit craters and
calderas with various shapes and
types of lava flows have been detected in the northeast of
Aksayqin Lake, west Kunlun.
At the Yanchi site of north-central China, the first-step
field investigation for the
Great Wall has been done based on the analysis for
SIR-C
data.
SIR-C Interferometry
SIR-C
interferometry data over the Kunlun site were processed.
After the resampling
and registration, the fringe was produced. This technique
will be used for the Karakax
Fault study.