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On Thu, 5 May 2005, Doug Lindholm wrote: > Hi Robb, > > Here's the bounding box they are interested in. All they need is an > estimate of the amount of data. Do you have any thoughts on how to get > such numbers for their data of interest: > > Metars, 1st order > Metars, 2nd order > Rawinsondes > ACARS > > No need to bust our butts. I just figured someone here (you?) would be > able to come up with a better estimate than I could. > > Thanks, > Doug > > > Hi Doug, > > > > For our region of interest > > > > west - Brownsville, TX, > > east - Mobile, Alabama, > > south - 80 miles south into the Gulf, > > north - Louisiana's northern boundary. > > > > I got the following latitude and longitude values from maporama.com. > > > > Place Boundary (latitude, longitude) > > --------------------------------------------------------------- > > Brownsville, TX West 25� 53' , -97� 29' > > 25.899 , -97.496 > > > > Mobile, Alabama East 30� 41' , -88� 3' > > 30.686 , -88.053 > > > > Louisiana boundary North 33� 1' , -92� 45' > > 33.027 , -92.758 > > > > 80 miles into Gulf South 28� 58' , -92� 23' > > 28.976 , -92.386 > > > > Region of interest: > > Latitude: 33� 1' to 28� 58' > > Longitude: -97� 29' to -88� 3' Metar server bounding box: the bounding box only works on 2 corner points, the lowerLeft (ll) and the upperRight (ur) of the box. here's a url to obtain the stations in the requested box: http://motherlode.ucar.edu:8088/thredds/ldm/metar?returns=dqc&time=latest&ll=28.976:-97.496&ur=33.027:-88.053 to see the latest reports of stations in box: http://motherlode.ucar.edu:8088/thredds/ldm/metar?returns=ascii&time=latest&ll=28.976:-97.496&ur=33.027:-88.053 or xml decoding of report http://motherlode.ucar.edu:8088/thredds/ldm/metar?returns=xml&time=latest&ll=28.976:-97.496&ur=33.027:-88.053 time parameter can be set to: latest, 1hour, 6hour, 12hour, 1day, ... 5day the current code is still in transition but the above features will still be available when completed. could you tell me the difference between the > >>>>>> >>> Metars, 1st order: 270 sources > >>>>>> >>> Metars, 2nd order: 1000 sources robb... > > > > It doesn't have to be exact but closeby ranges are good enough for our > > calculation. Thank you for helping us with this. > > > > thank you, > > Nithya > > > > > > On Wed, 4 May 2005, Doug Lindholm wrote: > > > > > >>> Date: Wed, 04 May 2005 09:58:06 -0600 > >>> From: Doug Lindholm <lind@xxxxxxxx> > >>> To: Beth A Plale <plale@xxxxxxxxxxxxxx> > >>> Cc: Nithya Nirmal Vijayakumar <nvijayak@xxxxxxxxxxxxxx>, > >>> Ying Liu <yingliu@xxxxxxxxxxxxxx> > >>> Subject: Re: data products covering deep south > >>> > >>> Hi Beth, > >>> > >>> If you'd still like some estimates from me could you give me a latitude, > >>> longitude bounding box? > >>> > >>> Thanks, > >>> Doug > >>> > >>> Beth A Plale wrote: > >> > >>>> > Hi Doug, > >>>> > > >>>> > We're building a realistic workload that we can push at a grid based > >>>> > stream service that extends dquob. We're modeling the workload after > >>>> > Ivan, and quantifying the number of users that might swarm to the > >>>> > server > >>>> > all at once to get information either to visualize (500 users), image > >>>> > by > >>>> > image, or to push into an assimilation to run their own forecast > >>>> > (another 500 users). > >>>> > > >>> > >>>>> >> From that we can estimate storage, memory, and CPU needs of the grid > >>> > >>>> > > >>>> > service. So your educated guess takes us a long way towards the level > >>>> > of accuracy we need. > >>>> > > >>>> > thanks a lot for your help with this > >>>> > > >>>> > beth > >>>> > > >>>> > On Wed, 27 Apr 2005, Doug Lindholm wrote: > >>>> > > >>> > >>>>> >> Hi Nithya, > >>>>> >> > >>>>> >> Could you give me a latitude, longitude bounding box? That would make > >>>>> >> it easier to do some checking. > >>>>> >> > >>>>> >> How precise do the numbers need to be? > >>>>> >> > >>>>> >> Thanks, > >>>>> >> Doug > >>>>> >> > >>>>> >> Nithya Nirmal Vijayakumar wrote: > >>>>> >> > >>>> > >>>>>> >>> Hi Doug, > >>>>>> >>> > >>>>>> >>> Thank you very much for the information. We derived the number of > >>>>>> >>> sources > >>>>>> >>> primarily based on the 'building block 1, data information for > >>>>>> >>> LEAD' > >>>>>> >>> document posted to the Data thrust group. Would it be fair to say > >>>>>> >>> that the > >>>>>> >>> there will be roughly 10% of of the total number of Metars and > >>>>>> >>> Rawinsondes > >>>>>> >>> sources for this area? > >>>>>> >>> > >>>>>> >>> The total number of sources we have are > >>>>>> >>> > >>>>>> >>> Metars, 1st order: 270 sources > >>>>>> >>> Metars, 2nd order: 1000 sources > >>>>>> >>> Rawinsondes: 94 sources > >>>>>> >>> > >>>>>> >>> > >>>>>> >>> thank you, > >>>>>> >>> Nithya > >>>>>> >>> > >>>>>> >>> On Tue, 26 Apr 2005, Doug Lindholm wrote: > >>>>>> >>> > >>>>>> >>> > >>>>> > >>>>>>> >>> > Date: Tue, 26 Apr 2005 11:28:11 -0600 > >>>>>>> >>> > From: Doug Lindholm <lind@xxxxxxxx> > >>>>>>> >>> > To: Beth A Plale <plale@xxxxxxxxxxxxxx> > >>>>>>> >>> > Cc: Nithya Nirmal Vijayakumar <nvijayak@xxxxxxxxxxxxxx>, > >>>>>>> >>> > Ying Liu <yingliu@xxxxxxxxxxxxxx> > >>>>>>> >>> > Subject: Re: data products covering deep south > >>>>>> > >>>>>>>> >>> > > Hi Beth, > >>>>>>>> >>> > > I'm still looking into a few things but here's a partial > >>>>>>>> >>> > > answer: > >>>>>>>> >>> > > Eta: The Eta model output is a CONUS product. It is > >>>>>>>> >>> > > available in > >>>>> > >>>>>> >>> several > >>>>> > >>>>>>> >>> > resolutions: 80km, 40km, 20km, 12km. So you could consider > >>>>>>> >>> > that as 1 > >>>>>>> >>> > source or 4. I think each resolution is generated by a unique > >>>>> > >>>>>> >>> model run > >>>>> > >>>>>>> >>> > (as opposed to a resampling of a single run) so I would be > >>>>> > >>>>>> >>> inclined to > >>>>> > >>>>>>> >>> > think of this as 4 sources. > >>>>>> > >>>>>>>> >>> > > GOES: There are currently 2 GOES satellites providing > >>>>>>>> >>> > > regular > >>>>> > >>>>>> >>> data. GOES > >>>>> > >>>>>>> >>> > 12 (aka GOES East) would provide coverage for your area of > >>>>> > >>>>>> >>> interest. It > >>>>> > >>>>>>> >>> > provides 4 channels of data (measured in different spectral > >>>>>>> >>> > band): > >>>>>>> >>> > visible, water vapor, and 2 IR. So you could think of that as 1 > >>>>> > >>>>>> >>> source > >>>>> > >>>>>>> >>> > or 4. I would consider it 1 source with 4 variables. > >>>>>> > >>>>>>>> >>> > > ACARS: This will vary depending on the number of flights > >>>>> > >>>>>> >>> reporting but > >>>>> > >>>>>>> >>> > we should be able to dig up a good estimate. > >>>>>> > >>>>>>>> >>> > > Still looking for info on the others. > >>>>>>>> >>> > > Where did you come up with your numbers? > >>>>>>>> >>> > > Doug > >>>>>>>> >>> > > Beth A Plale wrote: > >>>>>>> > >>>>>>>>> >>> > > > Hi Doug, > >>>>>>>> > >>>>>>>>>> >>> > > > > In an ongoing streaming project we are trying to > >>>>> > >>>>>> >>> characterize the > >>>>> > >>>>>>>> >>> > > flows of data that cover the region outlined by the > >>>>>>>> >>> > > bounding box: > >>>>>>> > >>>>>>>>>> >>> > > > > west - Brownsville, TX, > >>>>>>> > >>>>>>>> >>> > > east - Mobile, Alabama, > >>>>>>>> >>> > > south - 80 miles south into the Gulf, > >>>>>>>> >>> > > north - Louisiana's northern boundary. > >>>>>>> > >>>>>>>>>> >>> > > > > We know from talking to Carl Sinclair what Level II > >>>>>>>>>> >>> > > > > and > >>>>> > >>>>>> >>> Level III > > radars > >>>>> > >>>>>>>> >>> > > cover that region, but are now looking for similar info for > >>>>>>>> >>> > > Metars, > >>>>>>>> >>> > > Acars, Rawinsondes, Eta, and GOES. > >>>>>>> > >>>>>>>>>> >>> > > > > Is there someone there, perhaps you, that could give > >>>>>>>>>> >>> > > > > us an > >>>>> > >>>>>> >>> idea of the > >>>>> > >>>>>>>> >>> > > number of sources providing data on that region? For > >>>>>>>> >>> > > instance, > >>>>> > >>>>>> >>> there > >>>>> > >>>>>>>> >>> > > are 5 GOES sources according to info we gathered earlier > >>>>>>>> >>> > > (from > >>>>> > >>>>>> >>> Anne's > >>>>> > >>>>>>>> >>> > > compilation.) If the satellites are stationary, then the > >>>>>>>> >>> > > sources > >>>>>>>> >>> > > covering the deep south region might be 3 of the 5. Eta > >>>>>>>> >>> > > might be > >>>>>>>> >>> > > divided out into 1 source doing the east US, and one doing > >>>>>>>> >>> > > the > >>>>> > >>>>>> >>> west US > >>>>> > >>>>>>>> >>> > > (I have no idea what is really done), so the deep south is > >>>>> > >>>>>> >>> covered by > >>>>> > >>>>>>>> >>> > > one source. > >>>>>>> > >>>>>>>>>> >>> > > > > Metars, 1st order: 270 sources > >>>>>>> > >>>>>>>> >>> > > Metars, 2nd order: 1000 sources > >>>>>>>> >>> > > Rawinsondes: 94 sources > >>>>>>>> >>> > > ACARS: 257 sources > >>>>>>>> >>> > > GOES: 5 sources > >>>>>>>> >>> > > Eta: 2 sources > >>>>>>> > >>>>>>>>>> >>> > > > > thanks a bunch! > >>>>>>>>>> >>> > > > > beth > >>>>>>> > >>>>>>>> >>> > > -- > >>>>>> > >>>>>>> >>> > > >>>>> > >>>>>> >>> *----------------------------------------------------------------------* > >>>>> > >>>>>>> >>> > | Doug Lindholm, Software Engineer | E-mail: > >>>>> > >>>>>> >>> lind@xxxxxxxx | > >>>>> > >>>>>>> >>> > | Unidata Program Center | Phone: > >>>>> > >>>>>> >>> 303-497-8659 | > >>>>> > >>>>>>> >>> > | UCAR Office of Programs > >>>>> > >>>>>> >>> | | > >>>>> > >>>>>>> >>> > | P.O. Box 3000 | There's no > >>>>> > >>>>>> >>> place | > >>>>> > >>>>>>> >>> > | Boulder, Colorado 80307-3000 | like > >>>>> > >>>>>> >>> $HOME | > >>>>> > >>>>>>> >>> > > >>>>> > >>>>>> >>> *----------------------------------------------------------------------* > >>>>> > >>>>>>> >>> > > >>>> > >>>>> >> > >>>>> >> > >>>>> >> -- > >>>>> >> *----------------------------------------------------------------------* > >>>>> >> | Doug Lindholm, Software Engineer | E-mail: > >>>>> >> lind@xxxxxxxx | > >>>>> >> | Unidata Program Center | Phone: 303-497-8659 > >>>>> >> | > >>>>> >> | UCAR Office of Programs | > >>>>> >> | > >>>>> >> | P.O. Box 3000 | There's no place > >>>>> >> | > >>>>> >> | Boulder, Colorado 80307-3000 | like $HOME > >>>>> >> | > >>>>> >> *----------------------------------------------------------------------* > >>>>> >> > >>>>> >> > >> > >>> > >>> -- > >>> *----------------------------------------------------------------------* > >>> | Doug Lindholm, Software Engineer | E-mail: lind@xxxxxxxx | > >>> | Unidata Program Center | Phone: 303-497-8659 | > >>> | UCAR Office of Programs | | > >>> | P.O. Box 3000 | There's no place | > >>> | Boulder, Colorado 80307-3000 | like $HOME | > >>> *----------------------------------------------------------------------* > >>> > ============================================================================== Robb Kambic Unidata Program Center Software Engineer III Univ. Corp for Atmospheric Research rkambic@xxxxxxxxxxxxxxxx WWW: http://www.unidata.ucar.edu/ ==============================================================================
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