Activity

From 04/29/2011 to 05/28/2011

04:45 PM Task #207: Produce global fused DEM layer: Progress during week of 5/16:
> 1) Located and downloaded most if not all ASTER GDEM data tiles for Northern Hemisph... Rick Reeves
01:20 PM Task #225: Organize and document SRTM input DEM files: h4. Re: Different CGIAR SRTM 3" source data
Rick and I have been discussing the two different sets of CGIAR SRTM r... Jim Regetz

10:26 AM Task #225: Organize and document SRTM input DEM files: Yes, last week I created a new folder structure to contain the batch files and output files
for the next set of 'pr... Rick Reeves

05:33 PM Task #225 (In Progress): Organize and document SRTM input DEM files: _[Updated ticket description on 04-Aug-2011 to focus specifically on SRTM]_
SRTM DEM tiles and associated files ha... Jim Regetz
10:47 AM Task #207: Produce global fused DEM layer: Today I received an email from Rob G regarding progress on data layer construction; among the items in the email was ... Rick Reeves

10:56 AM Task #207: Produce global fused DEM layer: Here is an example of the workflows that generate fused digital terrain data layers
for one of the four Earth 'quadr... Rick Reeves

11:05 PM Task #215: Establish file organization and possible 'tiling' scheme for Fused Global Terrain data set: I am using this scheme; have created the directory structure, and have constructed
the first prototype fused global... Rick Reeves

03:12 PM Task #212: Validate fused DEM at SRTM/ASTER boundary: 5/10/2011
Rick R -
To (finally) completely respond to Rob G's request:
(Work was delayed because of unexpected p... Rick Reeves
02:20 PM Task #212: Validate fused DEM at SRTM/ASTER boundary: ... Rick Reeves

05:20 PM Task #207: Produce global fused DEM layer: Using a subset of the ASTER 'master tile list' (supplied by Bob Crippen at JPL) containing only the image tile file n... Rick Reeves

04:10 PM Task #212: Validate fused DEM at SRTM/ASTER boundary: Jim, I agree. You can in fact see the 1/2 pixel 'offset' in the screenshots that I captured
of the magnified ArcMap ... Rick Reeves
09:02 AM Task #212: Validate fused DEM at SRTM/ASTER boundary: ... Rick Reeves
07:40 AM Task #212: Validate fused DEM at SRTM/ASTER boundary: Two points regarding DEM raster extents and alignments:
* At least for SRTM, the pixel _*centers*_ are lined up al... Jim Regetz
03:57 PM Task #219: Good News: JPL provides comprehensive Global List of ALL ASTER DEM files: I re-read Bob's email; he notes that the file list for the GDEM2 data set should be 'the same or close' to
the GDEM... Rick Reeves
03:52 PM Task #219 (Rejected): Good News: JPL provides comprehensive Global List of ALL ASTER DEM files: I asked the technical POC for the ASTER Data Product if a master list of ASTER DEM files/tiles
was available for us... Rick Reeves
08:55 AM Task #207: Produce global fused DEM layer: Here, for the team's comment and feedback, is my proposed plan for producing the global Fused 1 Km Terrain layer.
... Rick Reeves

02:36 PM Task #212: Validate fused DEM at SRTM/ASTER boundary: I have created and checked in a readme file which documents the steps I used to
generate one of the first image mos... Rick Reeves
02:29 PM Task #212: Validate fused DEM at SRTM/ASTER boundary: ... Rick Reeves

05:08 PM Task #212: Validate fused DEM at SRTM/ASTER boundary: At Rob's request, I used R Raster package hist() function to generate histograms
for the images used in the image bo... Rick Reeves
01:43 PM Task #212: Validate fused DEM at SRTM/ASTER boundary: ... Rick Reeves
11:31 AM Task #212: Validate fused DEM at SRTM/ASTER boundary: I retrieved the Wilson and Gallant text from UCSB Library, and reviewed several of the chapters.
At the very least,... Rick Reeves

02:23 PM Task #212: Validate fused DEM at SRTM/ASTER boundary: Rick Reeves wrote:
>
> Preliminary visual review of these files, using ArcMap GIS zoom and variable transparency... Mark Schildhauer
01:49 PM Task #212: Validate fused DEM at SRTM/ASTER boundary: I am reporting report 30 hours spent on this task since April 25.
Email on 5/02 to Rob Guranick:
Re: Border a... Rick Reeves

11:52 AM Task #212: Validate fused DEM at SRTM/ASTER boundary: ... Rick Reeves
11:46 AM Task #212: Validate fused DEM at SRTM/ASTER boundary: Here is the output from a set of 'image difference' calculations made using the R script 'SampleDemDiffCols.r",
whic... Rick Reeves

04:36 PM Task #212: Validate fused DEM at SRTM/ASTER boundary: Was:
gdalwarp -te -135.9880605 58.4644470 -101.3377799 61.5793224 -r bilinear CanadaDemMosTuesdayClip.tif
CDem... Rick Reeves
04:02 PM Task #212: Validate fused DEM at SRTM/ASTER boundary: I am (finally) working through the 'image difference' analysis that Jim sketched out earlier this week.
And the firs... Rick Reeves
02:47 PM Task #212: Validate fused DEM at SRTM/ASTER boundary: Jim:
As I mentioned, after I completed my initial 'screen based' review of the boundary area, I intend to perform t... Rick Reeves
09:17 AM Task #212: Validate fused DEM at SRTM/ASTER boundary: A few comments:
Rick Reeves wrote:
> By superimposing the images and increasing the magnification
> on the lower le... Jim Regetz
11:05 AM Task #210: Produce global aspect layer: Take a look at the "@gdaldem@":http://www.gdal.org/gdaldem.html command-line utility. It includes an _aspect_ mode th... Jim Regetz
11:04 AM Task #209: Produce global slope layer: Take a look at the "@gdaldem@":http://www.gdal.org/gdaldem.html command-line utility. It includes a _slope_ mode that... Jim Regetz

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