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Satellite Observation Tools
Workshop on Health, Agricultural, and Water Risks
Associated with Air Quality and Climate in Asia
July 9-12, 2013
Steven Massie
NCAR/ACD
NCAR is sponsored by the National Science Foundation
Outline
NASA and European web sites
Can Order and Download data
Useful tools
Orbits
Browse images
NASA Giovanni
Let me help you !
A goal of this workshop is to build a research
community
If you need satellite data for your research
I can get the data for you
I can put in the format that is most helpful
Steven Massie
NCAR/ACD
1-303-497-1404
LEO Low Earth Orbit
Altitude of 160 - 2000 km
90 minutes per orbit
16 orbits per day
1st achieved in 1957 (Sputnik)
Space Station 330 km
NASA A-train 690 km
8,500 objects > 10 cm are tracked
MEO Medium Earth Orbit
2000 – 36,000 km
Examples: GPS (global positioning satellites)
GEO Geostationary Thank you Arthur C. Clarke ! (1945)
Altitude of 35,786 km
24 hours per orbit
Hovers over the equator
1st achieved in 1964
Most satellite data is from LEO orbits in precessing (local time
sampling varies) or sun-synchronus (same local times are observed)
DAACs (Distributed Active Data Centers)
Atmospheric Data
NASA Goddard ( http://disc.gsfc.nasa.gov/ )
NASA Langley ( https://eosweb.larc.nasa.gov/ )
Land Processes
LP DAAC ( https://lpdaac.usgs.gov/ )
Physical Oceanography
PO DAAC (http://podaac.jpl.nasa.gov/ )
Socioeconomic Data and Application Center
SEDAC ( http://sedac.ciesin.columbia.edu/ )
Snow and Ice
NSIDC ( http://nsidc.org/ )
Carbon and biosphere
ORNL (http://daac.ornl.gov/ )
European Data Centres
British Atmospheric Data Centre
http://badc.nerc.ac.uk/home/index.html
TEMIS
Has NO2, CH2O, CO, UV, O3, BrO, aerosol, CH4, clouds, SO2
http://www.temis.nl/airpollution/no2.html
NASA A-train
Constellation of satellites in the same polar orbit
Multi-sensors provide co-located data sets
Satellite Orbits
Aqua platform in the NASA A-train
http://www.ssec.wisc.edu/datacenter/aqua/GLOBAL.html
UTC times are specified on the map July 4, 2013 example
True Color Images from MODIS
How to Get True Color Image
http://ladsweb.nascom.nasa.gov/data/search.html
Click on Aqua Modis and select Aqua Level 1 Products
Click on Level 1B calibrated radiances – 1 km
Selct day(s) to look at type in selection of one day
Click on Latitude/Longitude and draw boxed region of interest
Select “Day Only”
Go to bottom of page and Click on “Search” button
Will see a new page
Click on “View RGB” in right hand column
Will see a true color image of the region of interest of the 5 minute granule
Calipso Data, Example
Z
Latitude 58 10
30
km
0
Clear Sky
Clouds
Aerosol
Rock
No
signal
Vertical Feature Map (VFM) from Calipso Browse Image website
CALIPSO Web Site
google NASA Calipso Browse
http://www-calipso.larc.nasa.gov/products/lidar/
browse_images/production/
Will see a calendar. Click on day of interest. Will see
day and night orbits. Click on panel of interest.
Examples:
Look at August 1, 2010 (look over Antarctica for PSCs)
Look at May 18, 2007 (look over India for aerosol height)
One can prepare maps and download data easily for many
NASA satellite experiments using the NASA Giovanni web site
http://disc.sci.gsfc.nasa.gov/giovanni/overview
Try it !
Specify the satellite experiment, latitude-longitude, time period
Get a graph (e.g. png) very quickly, see it on your laptop
Get an ascii or netCDF file of the data very quickly
You will like it!
NASA Giovanni web site !!
GRACE Satellite
2 Satellites in polar
orbits separated by
220 km
Precision: distance
from Los Angeles to
San Diego to within
a human hair width
GRACE Satellite
http://geoid.colorado.edu/grace/grace.php
Satellite Imagery and Cloud Products
http://cloudsgate2.larc.nasa.gov/index.html (Minnis group)
GOES – West (USA)
GOES – East (USA)
METEOSAT (European)
FENG-YUN (China)
MTSAT (Japan)
Contrail Forecast
NOAA AVHRR Viewer
MODIS Viewer (e.g. true color images)
Mid-Atlantic NEXRAD
ARM-SGP NEXRAD
Angles Viewer
Plot RAP Sounding (sounding profiles)
Gridded VISST Products
Satellite Overpass Predictor (3 dozen satellites)
Convert to Julian Day
Satellite Imagery and Cloud Products
Let me help you !
A goal of this workshop is to build a research
community
If you need satellite data for your research
I can get the data for you
I can put in the format that is most helpful
Steven Massie
NCAR/ACD
1-303-497-1404
