Navigation Links
Satellite sandwich technique improves analysis of geographical data
Date:4/9/2013

Combining parallel data from separate satellites can be like trying to make a peanut butter and jelly sandwich.

For the sandwich, you want rich and sweet flavors, blended into a smooth, creamy texture and you want it all in one convenient package. That's similar to how you want the satellite data, and Bo Yang, a University of Cincinnati graduate student in geography, has a formula for crafting a deeply informative and easily utilized satellite sandwich.

He'll present his research, "Spatiotemporal Cokriging Images Fusion of Multi-Sensor Land Surface Temperature over Thaw Lakes on North Alaska," at the Association of American Geographers annual meeting to be held April 9-13 in Los Angeles. The interdisciplinary forum is attended by more than 7,000 scientists from around the world and features an array of geography-related presentations, workshops and field trips.

For his master's thesis, Yang studied thermal data from two different types of polar-orbiting satellite systems. One system frequently records large images of a region on Earth but in little detail. Another system records small images less frequently but in much greater detail. Analyzing two massive sets of parallel data and finding a way to make them overlap can be complicated and time-consuming. Yang is developing a method to simplify the process.

"In an easy-to-understand way, I am trying to derive both very high-definition and high-frequency revisiting imagery from two satellite-carried sensors," Yang says. "I use the spatial statistics technique known as co-kriging to fuse multi-sensor land surface temperature images."

Yang uses an algorithm he devised to fill the spatiotemporal gaps between the two data sets. The result is an intricately detailed map covering a large surface area that allows geographers to quickly derive daily even hourly surface temperature and emissivity information. These environmental parameters are important to agriculture and water resource management and can be used to detect the onset and severity of drought.

Yang used thaw lakes in the Arctic Coastal Plain of Alaska as his study area. These lakes are a critical component to Arctic ecology and one that is considered vulnerable to the effects of climate warming. Yang's work is connected to a larger project under way in the region, the Circumarctic Lakes Observation Network. The National Science Foundation-funded effort aims to gather long-term, spatially extensive data to evaluate the effect of climate change on the region. UC faculty involved in the project include professors Kenneth Hinkel, Richard Beck, Wendy Eisner, Changjoo Kim, Hongxing Liu and Amy Townsend-Small, all of the McMicken College of Arts & Sciences.


'/>"/>

Contact: Tom Robinette
tom.robinette@uc.edu
513-556-1825
University of Cincinnati
Source:Eurekalert

Related biology news :

1. Satellite tagging maps the secret migration of white sharks
2. Satellite visualization tool for high-res observation accessible from anywhere with internet access
3. Taking the pulse of volcanoes using satellite images
4. Satellite images tell tales of changing biodiversity
5. SMOS satellite measurements improve as ground radars switch off
6. NASA satellites see wildfires across Colorado
7. NASA satellite sees several western US fires blazing
8. First satellite tag study for manta rays reveals habits and hidden journeys of ocean giants
9. NASA satellite measurements imply Texas wind farm impact on surface temperature
10. NASAs Landsat satellites see Texas crop circles
11. NASAs new satellite movie of 1 weeks ash activity from Mexicos Popocatepetl Volcano
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/6/2017)... , Feb. 6, 2017 According ... security are driving border authorities to continue to ... reports there are 2143 Automated Border Control (ABC) ... currently deployed at more than 163 ports of ... 2013 to 2016 achieving a combined CAGR of ...
(Date:2/2/2017)... Feb. 2, 2017  EyeLock LLC, a market leader ... white paper " What You Should Know About Biometrics ... ensuring user authenticity is a growing concern. In traditional ... users. However, traditional authentication schemes such as username/password suffer ... Biometric authentication offers an elegant solution to the problem ...
(Date:1/30/2017)... 30, 2017   Invitae Corporation (NYSE: ... information companies, today announced that it will report its ... 2017 guidance on Monday, February 13, 2017, and Invitae,s ... at 4:45 p.m. Eastern / 1:45 p.m. Pacific. ... briefly review financial results, guidance, and recent developments and ...
Breaking Biology News(10 mins):
(Date:2/21/2017)... ... February 21, 2017 , ... ... Liquid Biopsy System , a fully automated benchtop system for collecting intact circulating ... is being launched at the Molecular Medicine Tri Conference (Tri-Con) Annual Meeting 2017 ...
(Date:2/21/2017)... ... February 21, 2017 , ... Cancer diagnostics workflow solution ... its executive team to lead the development and commercialization of its Cancer Information ... the diagnosis and treatment of cancer. The CIDT addresses the need for curated ...
(Date:2/21/2017)... IL (PRWEB) , ... February ... ... of the Life -Sciences division, Treximo will pair its $200M operational capacity ... results-based consulting and project management in areas affecting quality and operational management. ...
(Date:2/21/2017)... (PRWEB) , ... February 21, 2017 , ... ... creating transformative design and manufacturing solutions for original equipment manufacturers (OEMs) , today ... 2017 marks Creation Technologies’ third consecutive year winning in its category of electronics ...
Breaking Biology Technology: