IMAGERY
IN YOUR WORLD
The Latest on . . .
Remote Sensing for Search, Prediction, and Fun
A
Second Satellite for Taiwan
Taiwan's second satellite, ROCSAT-2, successfully
reached orbit in late May. The 724-kilogram,
hexagonal-shaped orbiter was co-developed with the French
satellite manufacturer Astrium and others, and carries a
sensor capable of capturing 2-meter resolution imagery.
ROCSAT's final orbiting altitude will be 891 kilometers.
U.S. contractor Orbital Sciences Corp. was responsible for
the launch vehicle, a 35-meter Taurus XI rocket.
Authorities were pleased with the company's work and
expect Orbital to provide the rocket carrier for Taiwan's
next satellite, ROCSAT-3, scheduled for launch in late
2005. Taiwan's first satellite, 295-kilogram ROCSAT-1, was
launched in January 1999. Despite a four-year
life-expectancy, ROCSAT-1 is still operational.
Washington,
D.C. Losing Its Green
A new study reports that between 1986 and 2000 the
area around the United States capitol of Washington, D.C.
lost twice as much green space as it did in its entire
prior history. A study from the Metropolitan Washington
Council of Governments and the National Park Service
concludes that 28 to 43 square miles of green space in the
region vanish each day. It turns into parking lots, strip
malls, developments, and other man-made features. The
Green Infrastructure Demonstration Project, as the study
is known, used satellite imagery to map a
3,000-square-mile area around the District of Columbia.
The authors compared aerial images dating back to 1986
with more recent data. One of the findings of the study is
that development tends to occur in small clumps making
larger areas of green space scarce. Larger areas are
required for healthy animal populations and native plant
species.
Satellite
Imagery and DVDs
Step into Liquid was a not so well-received
theatrically released documentary film from last year.
This year it debuts on DVD, bringing its coverage of
surfing the big waves to the small screen. The film was
made without stuntmen in some of the more exotic surfing
locations around the world. One of the DVD extras is
Activision's Kelly Slater's Pro Surfer video game which
puts the player into the action riding the waves. Another
goody is from Keyhole, the company that brought 3D Iraqi
geography into living rooms on the evening news. This time
the company's geospatial databases provide users the
chance to virtually visit the great surfing destination
from the film. The DVD includes a free seven-day Web trial
of the company's imagery from around the globe.
Satellite
Imagery Book
Gregory Dicum's book, Window Seat: Reading the
Landscape from the Air, has received positive reviews. The
book features 70 images and tips on picking out features
while traveling via air across the United States and
Canada.
Distinguished
Satellite Imagery User
Oceanographer Dudley Chelton, Jr. was named a
distinguished professor at Oregon State University (OSU),
the highest honor awarded. Chelton uses satellite imagery
to analyze the oceans and helped the university land the
new Cooperative Institute for Oceanographic Satellite
Science, funded by the National Oceanic and Atmospheric
Administration. Chelton helped revolutionize the study of
oceans through the use of satellite data and he is a
principal architect of the U.S. microwave ocean observing
satellite constellation. His studies focus primarily on
air-sea interactions and his models and multi-satellite
assessment techniques are widely used by scientists
throughout the world. Chelton also designed and helped
implement an exhibit on satellites and El Niņo for the
Oregon Museum of Science and Industry which has been
duplicated for the Jet Propulsion Laboratory and the
California Museum of Science and Industry. Chelton, who
has been on the OSU faculty since 1983, has won the
Patullo Award for Excellence in Teaching and the NASA
Public Service Medal.
Man
Sees Noah's Ark in Satellite Imagery
Daniel McGivern, a businessman and Christian activist,
hopes to look for Noah's Ark this summer. After several
attempts to capture images of Mt. Ararat in Turkey via
satellite, he was finally successful. DigitalGlobe
provided him with imagery he says shows an 80% likelihood
of a man-made object in an appropriate location on the
mountain. Warmer than normal temperatures have caused
melting of the snowcap and may have revealed something
that's not been visible in the past. McGivern plans to
mount an expedition to the area between July 15 and August
15 at a cost of $900,000.
Satellites
Help Predict Malaria
Dr. Ron Welch, a scientist with NASA's Global
Hydrology and Climate Center at the National Space Science
and Technology Center in Huntsville, Alabama is leading a
project to identify the conditions that lead to the
breeding of malaria-carrying mosquitoes. "What we are
trying to do is develop an early warning system for
malaria, although it can be used for other diseases. We
are going to start with the malaria," he reports.
Scientists have a good sense of the exact combination of
environmental factors that allow breeding. They now hope
to pinpoint areas with those factors using ground-based
sensors for temperature, humidity, and soil conditions,
along with satellite imagery. High resolution commercial
imagery allows researchers to identify standing water near
major population centers. The goal is a warning system
that will allow early, limited area spraying some weeks or
even a month before breeding might occur. Early work on
the model was done in Guatemala but now interest is
focused on southern India, one of the areas most
susceptible to malaria in the world.
Washing
Machine Shaped Satellite?
Proba, an acronym for Project for On Board Autonomy, is a
European Space Agency (ESA) satellite that has been
described as looking like a washing machine. It captures
14-km square images to 18-meter resolution via the Compact
High Resolution Imaging Spectrometer (CHRIS) and black and
white 25-km square images to a resolution of five meters
via a High-Resolution Camera (HRC). The satellite or
micro-satellite, as it's called, was launched in October
2001 as a demo but worked well enough to serve scientists'
needs. It's outlived its one-year expected life span and
has a companion under development. Proba-2 is due to be
deployed by ESA around 2005.
Back
|