RSD marit's home projects

GOES-9 1 minute interval data over florida

May-June 2001

color visualization information
grayscale visualization information

This is a 1-minute interval GOES-9 dataset that shows thunderstorm development over florida. There are 367 images in this series which runs from 1231 UTC to 2344 UTC on July 2, 1995 The data had many errors caused by noisy reception, which were found and removed by an IDL program I wrote that interpolated between adjacent good data. The data also drifts spatially quite a bit from the beginning to the end of the series.


Here are three quicktime movies made from a subset of the data showing the data before and after being fixed and aligned. Only two images per hour are used to make the test movies be a reasonable size. The first movie shows the data with bad lines masked with zeros, the second shows the data with the bad lines filled with linearly interpolated values and the third shows the data aligned to remove x and y shifts caused by inaccurrate navigation.



data with bad lines masked with zeros
data with bad lines filled with interpolated values

masked data movie , jpeg compression, 730x730, 2.8 MB
fixed data movie , jpeg compression, 730x730, 2.3 MB
aligned data movie, jpeg compression, 730x730, 2.3 MB




After several attempts, I wrote some software to automatically align the GOES-9 images. It only finds whole pixel alignment, so at some point I'll have to find or write a program to do subpixel matching. In the meantime I made a color time series animation by combining the GOES-9 data with a MODIS cloud-free background image.



full size still from middle of the time series
Small jpg image, 775x 875, 0.3 MB
Medium jpg image, 1550x1750, 1.1 MB
Large jpg image, 3100x3500, 3.6 MB

overview of full scene (scaled down vertically to fit HDTV 16:9 ratio)
Small Quicktime movie , sorenson compression, 320x180, 6 MB
Small Quicktime movie , jpeg compression , 320x180, 10 MB
Medium Quicktime movie, sorenson compression, 640x360, 27 MB

A 29 MB mpeg2 version of the visualization that can be played on the Electrasonic HDTV HD players can be found at ftp://gloria2-f.gsfc.nasa.gov/mpeg2/val/goes9_1min_full.mpg

Northern half of scene
Small Quicktime movie , sorenson compression, 320x180, 6 MB
Small Quicktime movie , jpeg compression , 320x180, 9 MB
Medium Quicktime movie, sorenson compression, 640x360, 26 MB

A 29 MB mpeg2 version of the visualization that can be played on the Electrasonic HDTV HD players can be found at ftp://gloria2-f.gsfc.nasa.gov/mpeg2/val/goes9_1min_north.mpg

Southern half of scene
Small Quicktime movie , sorenson compression, 320x180, 5 MB
Small Quicktime movie , jpeg compression , 320x180, 9 MB
Medium Quicktime movie, sorenson compression, 640x360, 20 MB

A 29 MB mpeg2 version of the visualization that can be played on the Electrasonic HDTV HD players can be found at ftp://gloria2-f.gsfc.nasa.gov/mpeg2/val/goes9_1min_south.mpg

Zoom on Florida thunderstorms
Small Quicktime movie , sorenson compression, 320x180, 6 MB
Small Quicktime movie , jpeg compression , 320x180, 9 MB
Medium Quicktime movie, sorenson compression, 640x360, 23 MB

A 29 MB mpeg2 version of the visualization that can be played on the Electrasonic HDTV HD players can be found at ftp://gloria2-f.gsfc.nasa.gov/mpeg2/val/goes9_1min_closeup.mpg

Grayscale Florida thunderstorms
Small Quicktime movie , sorenson compression, 320x180, 2 MB
Small Quicktime movie , jpeg compression , 320x180, 6 MB
Medium Quicktime movie, sorenson compression, 640x360, 8 MB
Medium Quicktime movie, jpeg compression , 640x360, 20 MB

A 37 MB mpeg2 version of the visualization that can be played on the Electrasonic HDTV HD players can be found at ftp://gloria2-f.gsfc.nasa.gov/mpeg2/val/gray_florida.mpg