Noted. Thanks. gerry
On Wed, Dec 11, 2013 at 12:42 PM, David Fawcett <[email protected]>wrote: > For the PostGIS, processing, and visualization parts, you may want to look > at the presentations that Howard Butler and Paul Ramsey have done in the > last year at FOSS4G NA and FOSS4G. > > David. > > > On Wed, Dec 11, 2013 at 11:33 AM, Gerry Creager - NOAA Affiliate < > [email protected]> wrote: > >> I'll post a site where you can snag some data for MSP later. I'll also >> look into when we might get some Level II data from the FAA's Terminal >> Doppler Weather Radar. Test data, for sure, but it might help in getting >> them to free up the TDWR Level II... Never know. >> >> gerry >> >> >> On Wed, Dec 11, 2013 at 11:26 AM, Basques, Bob (CI-StPaul) < >> [email protected]> wrote: >> >>> Gerry, >>> >>> >>> >>> Any time stamped data for the MSP airport area would work in the near >>> term to play with, the realtime stuff would only be important once I got it >>> displaying alongside/inside my existing info systems. I’m all about doing >>> the data mashup stuff, you never know what kinds of uses will pop out of >>> these things once they are presented to folks. >>> >>> >>> >>> Bobb >>> >>> >>> >>> >>> >>> >>> >>> *From:* [email protected] [mailto: >>> [email protected]] *On Behalf Of *Gerry Creager - >>> NOAA Affiliate >>> *Sent:* Wednesday, December 11, 2013 11:19 AM >>> *To:* PostGIS Users Discussion >>> >>> *Subject:* Re: [postgis-users] Old question resurfacing >>> >>> >>> >>> The radar data are freely available and while I'm working with an older >>> lidar ceilometer, I can make those data available to you, too. If you need >>> real time WSR88D data, I'll have to work with you on that, and we'll get a >>> data feed from another organization. >>> >>> >>> >>> Specifically, what I'm working on is to push the radar data into a >>> database (pointcloud really does look promising) and retrieve it as point >>> observations for what we call data assimilation to help improve weather >>> models. I'm working on placing other data into a PostGIS database for >>> surface observations, etc. >>> >>> >>> >>> Note that the ceilometer data is a VERY straightforward array every 'n' >>> seconds and won't pose a problem in stuffing it into a database. The >>> intriguing thing about a spatial database for lidar ceilometer data is the >>> ease in plotting individual sites' data. OR, if you were to place a grid of >>> these things out on a test site, to look at tomographs of the lower >>> atmosphere ("Boundary Layer"). >>> >>> >>> >>> gerry >>> >>> >>> >>> On Wed, Dec 11, 2013 at 8:49 AM, Basques, Bob (CI-StPaul) < >>> [email protected]> wrote: >>> >>> Hmm, >>> >>> >>> >>> I’m working with the Minneapolis International Airport (MSP) on a >>> project, any chance that data is open/accessible enough to play with? >>> This could tie directly into a project I’m already working on. >>> >>> >>> >>> Thanks >>> >>> >>> >>> Bobb >>> >>> >>> >>> >>> >>> >>> >>> *From:* [email protected] [mailto: >>> [email protected]] *On Behalf Of *Gerry Creager - >>> NOAA Affiliate >>> *Sent:* Tuesday, December 10, 2013 2:14 PM >>> >>> >>> *To:* PostGIS Users Discussion >>> *Subject:* Re: [postgis-users] Old question resurfacing >>> >>> >>> >>> Bob, all: >>> >>> >>> >>> I agree. I'll have to spend some time with pointcloud but it DOES look >>> very promising. >>> >>> >>> >>> Another application? Lidar. Pointed at the sky, not at the ground (we >>> use 'em to determine cloud layers [ceiling] and sky cover at airports for >>> aviation data...). >>> >>> >>> >>> Thanks, all! >>> >>> gerry >>> >>> >>> >>> On Tue, Dec 10, 2013 at 1:49 PM, Basques, Bob (CI-StPaul) < >>> [email protected]> wrote: >>> >>> Gerry, >>> >>> >>> >>> Remi’s idea about using a point cloud may be spot on for your use. It >>> allows you to set a point cloud down to a revolution if need be, which >>> seems like what you are looking for.. If the data becomes too massive for >>> insertion into DB at real-time speeds, then you could also separate this >>> revolution into separate DB’s as well, you could separate a whole number of >>> ways, by elevation, or quadrant, or . . . >>> >>> >>> >>> I’m very interested in visualization possibilities with something like >>> this being available in a database. We’re doing some similar db 3d >>> visualization stuff on some rather dense point clouds. Your data once >>> available could use the same visualizer. >>> >>> >>> >>> Bobb >>> >>> >>> >>> >>> >>> >>> >>> *From:* [email protected] [mailto: >>> [email protected]] *On Behalf Of *Gerry Creager - >>> NOAA Affiliate >>> *Sent:* Tuesday, December 10, 2013 1:41 PM >>> *To:* PostGIS Users Discussion >>> *Subject:* Re: [postgis-users] Old question resurfacing >>> >>> >>> >>> Bob >>> >>> >>> >>> At least preliminarily, I can post-process, so speed of db adds isn't >>> too troubling. Maintaining accurate representation of the bin-volume data >>> is, however, important. >>> >>> >>> >>> Typical rotation is 1-3 RPM, and a complete volume scan takes ~11 min in >>> clear air (where you best see biologicals if so inclined) or ~5 min in one >>> of the storm data collection modes. These are for common WSR88D, stationary >>> radars. SMARTR's and others we have here that are mobile present a whole >>> host of other options/data eval and speed problems. >>> >>> >>> >>> Current radar data are nominally considered to have a horizontal >>> resolution of ~250 m, ignoring distortion or keyholing due to >>> range.Typically 16 elevations are scanned, once or or twice in storm mode >>> and a few less elevations in clear air mode. >>> >>> >>> >>> Now, the interesting thing that's on the horizon is Phased Array Radar. >>> When that happens, more data, more resolution, and faster updates. >>> >>> >>> >>> gerry >>> >>> >>> >>> On Tue, Dec 10, 2013 at 11:05 AM, Basques, Bob (CI-StPaul) < >>> [email protected]> wrote: >>> >>> Gerry, >>> >>> >>> >>> Seems like the biggest hangup would be in adding the data to the DB fast >>> enough. How many points, per revolution, and what is the frequency of a >>> revolution (stationary Radar, correct, although as I think about it, it >>> could be mobile if needed, just need to add in the radar location to each >>> record)? >>> >>> >>> >>> Bobb >>> >>> >>> >>> >>> >>> >>> >>> *From:* [email protected] [mailto: >>> [email protected]] *On Behalf Of *Gerry Creager - >>> NOAA Affiliate >>> *Sent:* Tuesday, December 10, 2013 10:52 AM >>> *To:* PostGIS Users Discussion >>> *Subject:* [postgis-users] Old question resurfacing >>> >>> >>> >>> I asked this years ago, and I think Paul was less than pleased with me >>> (:-), but: >>> >>> >>> >>> Has anyone, in the ensuing years looked at encoding radar data into a >>> postGIS database? We've a little idea that might benefit one project, and >>> getting the radar data into a good geospatial format would be >>> beneficial.The data, of coure, would start out as radial-distance and >>> intensity from the radar site, although we could preprocess it by gridding. >>> >>> >>> >>> Thanks, Gerry >>> >>> -- >>> >>> Gerry Creager >>> >>> NSSL/CIMMS >>> >>> 405.325.6371 >>> >>> ++++++++++++++++++++++ >>> >>> “Big whorls have little whorls, >>> >>> That feed on their velocity; >>> >>> And little whorls have lesser whorls, >>> >>> And so on to viscosity.” >>> >>> Lewis Fry Richardson (1881-1953) >>> >>> >>> _______________________________________________ >>> postgis-users mailing list >>> [email protected] >>> http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users >>> >>> >>> >>> >>> >>> -- >>> >>> Gerry Creager >>> >>> NSSL/CIMMS >>> >>> 405.325.6371 >>> >>> ++++++++++++++++++++++ >>> >>> “Big whorls have little whorls, >>> >>> That feed on their velocity; >>> >>> And little whorls have lesser whorls, >>> >>> And so on to viscosity.” >>> >>> Lewis Fry Richardson (1881-1953) >>> >>> >>> _______________________________________________ >>> postgis-users mailing list >>> [email protected] >>> http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users >>> >>> >>> >>> >>> >>> -- >>> >>> Gerry Creager >>> >>> NSSL/CIMMS >>> >>> 405.325.6371 >>> >>> ++++++++++++++++++++++ >>> >>> “Big whorls have little whorls, >>> >>> That feed on their velocity; >>> >>> And little whorls have lesser whorls, >>> >>> And so on to viscosity.” >>> >>> Lewis Fry Richardson (1881-1953) >>> >>> >>> _______________________________________________ >>> postgis-users mailing list >>> [email protected] >>> http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users >>> >>> >>> >>> >>> >>> -- >>> >>> Gerry Creager >>> >>> NSSL/CIMMS >>> >>> 405.325.6371 >>> >>> ++++++++++++++++++++++ >>> >>> “Big whorls have little whorls, >>> >>> That feed on their velocity; >>> >>> And little whorls have lesser whorls, >>> >>> And so on to viscosity.” >>> >>> Lewis Fry Richardson (1881-1953) >>> >>> _______________________________________________ >>> postgis-users mailing list >>> [email protected] >>> http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users >>> >> >> >> >> -- >> Gerry Creager >> NSSL/CIMMS >> 405.325.6371 >> ++++++++++++++++++++++ >> “Big whorls have little whorls, >> That feed on their velocity; >> And little whorls have lesser whorls, >> And so on to viscosity.” >> Lewis Fry Richardson (1881-1953) >> >> _______________________________________________ >> postgis-users mailing list >> [email protected] >> http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users >> > > > _______________________________________________ > postgis-users mailing list > [email protected] > http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users > -- Gerry Creager NSSL/CIMMS 405.325.6371 ++++++++++++++++++++++ “Big whorls have little whorls, That feed on their velocity; And little whorls have lesser whorls, And so on to viscosity.” Lewis Fry Richardson (1881-1953)
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