Space and time scales in satellite oceanography

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Presentation transcript:

Space and time scales in satellite oceanography March 21, 2017 Multi-Satellite Remote Sensing Section 4 Space and time scales in satellite oceanography Young-Heon Jo 2017 Spring Semester

What do you see? Large scale red tide Cochlodinium blooms, 8,13, 2013

Various sample images uTube

Outline 4.1 Creation of images data sets 4.2 Sampling frequency for satellite data 4.3 Space-time sampling characteristics of remotely sensed ocean measurements 4.4 Scales of ocean processes 4.5 Matching sampling capabilities to ocean processes 4.6 In situ sampling for satellite product validation

4.1 Creation of images data sets 4.1.1 point measurements

4.1.2 creating images

4.1.3 spatial resolution

4.1.4 Improving spatial resolution

4.1.5 Size of Images

4.2 Sampling frequency for satellite data

Daily SST 3 days SST http://www.remss.com/ http://images.remss.com/amsr/amsr2_data_daily.html

3 days rain rate Monthly mean rain rate

4.3 Space-time sampling characteristics of remotely sensed ocean measurements

4.4 Scales of ocean processes

4.5 Matching sampling capabilities to ocean processes

4.5.1 Observing horizontal patterns

4.5.2 Observing vertical variation http://www.youtube.com/watch?v=J7kIGdhW9jQ http://www.youtube.com/watch?v=xBcN3o1hmv0 : Water Quality http://www.youtube.com/watch?v=FpnVvWhxVNc Multi-band http://www.youtube.com/watch?v=t6vG2OAq-UA Sensor geometric characteristics

4.6 In situ sampling for satellite product validation 4.6.1 Requirement for in situ observations but not “sea truth” 4.6.2 Spatial-temporal matching between satellite and in situ data

Data processing Numerous US launch failures

http://www. satimagingcorp http://www.satimagingcorp.com/characterization-of-satellite-remote-sensing-systems.html Field Data: http://www.youtube.com/watch?v=wSxlfSd4Pq0