satellite observation tools -...

Satellite Observation Tools

Workshop on Health, Agricultural, and Water Risks

Associated with Air Quality and Climate in Asia

July 9-12, 2013

Steven Massie

massie@ucar.edu

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

massie@ucar.edu

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

massie@ucar.edu

1-303-497-1404