Category: Utilities

Dec 10

Multiple-thread gzip

I was recently backing up some very large datasets and became impatient with the typical time it takes from creating *.tar.gz archives. During one backup session I started searching for a possible method to utilize multiple threads. I came across pigz, which is basically a parallel implementation of gzip. I came across an interesting thread …

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Permanent link to this article: http://www.mattbilskie.com/multiple-thread-gzip/

Aug 19

Updated Code – GRD2DEM.F90

I updated an old code, Interpolation_auto.F, to a new and revamped version, DEM2GRD.F90. The utility takes in a Digital Elevation Model (DEM) and interpolates it onto an unstructured finite element mesh using the cell-area averaging (CAA) algorithm published in Bilskie & Hagen (2013). An example input file can be found here. I also put together …

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Permanent link to this article: http://www.mattbilskie.com/updated-code-grd2dem-f90/

May 27

Using Arcpy to convert las files to mulitpoint shapefile

Recently, I have been doing some heavy processing of las files to eventually generate a digital elevation model (DEM). I found myself in a dilemma of having thousands of las files and needing a way to convert them to mulitpoint  shapefiles (mps). I have used lastools in the past, but typically steer away from most …

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Permanent link to this article: http://www.mattbilskie.com/using-arcpy-to-convert-las-files-to-mulitpoint-shapefile/

Dec 16

New Code – LULC2GRD

I added a new code to the ADCIRC utilities page, LULC2GRD.f90. The code creates the Manning’s n nodal attribute for an ADCIRC simulation based several Land Use Land Cover (LULC) datasets and cell averaging interpolation. Please e-mail to request a copy.

Permanent link to this article: http://www.mattbilskie.com/new-code-lulc2grd/

ADCIRC Utilities

DEM2GRD.F90 – New version of Interpolation_auto.F. to a new and revamped version, . The utility takes in a Digital Elevation Model (DEM) and interpolates it onto an unstructured finite element mesh using the cell-area averaging (CAA) algorithm published in Bilskie & Hagen (2013). An example input file can be found here and User Manual. LULC2GRD.f90 – Creates the Manning’s n attribute for …

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Permanent link to this article: http://www.mattbilskie.com/programs/