[ESIP-all] [ESSI] Looking for experts on GeoTIFF, MODIS & Landsat, plus a place to stash a few TB of images.
Lynnes, Christopher S. (GSFC-6102)
christopher.s.lynnes at nasa.gov
Thu Aug 15 14:51:29 EDT 2013
It seems like there should be a Best Practices site for this kind of activity, incorporating both the lessons learned from the Jim Gray search and those that are emerging on this list, as well as some rules of thumb (for a vessel of size X, you need imagery from satellite/instrument Y at Z resolution...) and pointers to tools that can do the kind of image analysis on the data that are needed.
On Aug 14, 2013, at 8:56 PM, Joe Hourcle <oneiros at grace.nascom.nasa.gov> wrote:
> It seems that everyone was so helpful in getting the requested
> images to help search for the Schooner SV Niña, that there's now
> issues with actually going through all of the data.
> (see Barbara's message, below.)
> Thanks in advance for any help. And Barbara and I might be slow
> to respond tomorrow, as we're both going to be pretty well tied
> up 'til about 2 pm.
> ps. Yes, that really is my e-mail address. You can check whois
> if you don't believe me.
> pps. If someone offers you tickets to a Weird Al concert, I
> highly recommend taking them up on it.
> Begin forwarded message:
>> From: Barbara Thompson <barbara.j.thompson at gmail.com>
>> Date: August 14, 2013 11:05:21 PM EDT
>> To: Joe Hourclé <oneiros at annoying.org>
>> Subject: Favor?
>> Hi Joe,
>> Would you mind forwarding the following request to the lists that you
>> originally sent the messages to? You got such a huge response. Sorry to
>> ask, but I think it'll be quicker if it comes from you because it'll go
>> straight to the people. If there's any way I can pay back the favor (a
>> stash of Weird Al Yankovic tickets??) I'll be glad to do so.
>> (Please note that this effort is entirely staffed by volunteers. Those of
>> you who know me should be aware that I am contacting you as a private
>> citizen - this effort is not associated with my professional activities.
>> - Barbara)
>> First and foremost, I thank all of you for your advice regarding the search
>> for the Schooner SV Niña. More stories are surfacing of people who were
>> lost at sea for months, and it is very encouraging. Aerial searches are
>> continuing, and we are receiving support from Earth-observing satellites to
>> provide imagery from the Tasman Sea. Tim Paynter, one of our team
>> members, has made some videos to familiarize people with the Niña and her
>> crew, and why we find this effort so worthwhile:
>> (see his Youtube Channel for even more)
>> We have received many messages with excellent suggestions, and we are
>> attempting to follow up on all of the information we've received.
>> Unfortunately, there have been hundreds of emails, so I apologize if I
>> haven't gotten back to you quickly.
>> I am writing you because we are hoping to attract help on three fronts:
>> 1) Tomnod.com has launched a search for the Niña (
>> http://www.tomnod.com/nod/challenge/ninarescue2) and we welcome all
>> volunteers. However, we are about to receive a huge amount of raw data
>> (several Terabytes) from DigitalGlobe, and we are trying to determine how
>> to make this data available. All of our funds are volunteer funds, and the
>> sites for which we've gotten price estimates charge per GB of download -
>> which can add up to quite a bit of money. We have a test data set (1.5
>> GB) already if you want to take a look. The results of this effort will
>> guide aerial searches and help determine where satellite images should be
>> obtained. Any advice on how to serve this much data would be greatly
>> appreciated - we only need it for a couple of weeks!
>> 2) We need assistance in analyzing the data. The images are in GeoTIFFs,
>> and none of our team has experience with that format (I study solar imagery
>> - looking in the wrong direction!). We are working on attracting feature
>> recognition and information processing experts to analyze the data, but
>> some need us to export the data to a format that's more familiar to them.
>> We welcome help from who has experience with GeoTIFFs and image processing.
>> 3) We've had several people point out that although many Earth Science
>> imagers have too low of resolution to find a 70-foot vessel, the wake of
>> the ship can extend for some distance and may be able to be seen in 250m
>> resolution data. Any information about the history of the ship's course
>> could be useful helping drift modelers determine the most likely location
>> of the Niña. However, no one on our team has experience with MODIS or
>> Landsat imagery. We welcome assistance from anyone who may be able to help
>> with a search of relevant Earth Science data sets.
>> Again, we are extremely grateful for all of the wonderful advice and
>> encouraging messages. However, our small team is unable to take advantage
>> of all of the possible opportunities. If you would like to assist in this
>> effort, please let me know. We are grateful for any time you can spare.
>> Best wishes,
>> Barbara Thompson
>> on behalf of the Schooner SV Niña search team (updates at http://evxx.com)
Dr. Christopher Lynnes, NASA/GSFC, ph: 301-614-5185
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