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Messages - Dean

#16
Using SLAMM / Re: Command Line Option of SLAMM
December 18, 2009, 10:02:47 AM
Hmm, any ideas why I might get an output from the command line version of slamm 6 that looks like that below (upper right)?  The lower left is the same area, but run w slamm 5.0.4.  I checked the input files, and they seem fine.

Thanks,
Dean

ps. In case you're wondering, they're misaligned b/c I haven't projected them yet, so ArcMap just drew them on the screen.
#17
Model Formulation & Parameters / Re: Accretion
December 15, 2009, 12:56:02 PM
Are the distance to channel and elevation of cell factors set to a default if the new accretion parameters are not manually set in version 6, or must these be set?  In other words, is there any difference in the accretion model between version 5 and 6 if none of the new accretion parameters are input?

Thanks,
Dean
#18
Yeah, I think that would be great idea. I was presenting some preliminary results and the GIS staff I was working with thought the public would be skeptical of the output if it didn't look "real." I agree, and so we were thinking about how to take the lines out of the final outputs for public presentation. Having the option to turn soil sat. off would be good.

-Dean
#19
Jonathan,  thanks for this. I was just thinking I needed to ask about that.

-Dean
#20
Model Formulation & Parameters / protection scenarios
November 30, 2009, 11:21:58 AM
Is there an effect on the surrounding land cover class outputs between the protect development and "don't protect development" scenarios? I don't see one when visually inspecting the outputs. It seems though, that if an armored shoreline were in place to protect development, the displacement of the water from SLR would cause different scenarios to play out in the habitats surrounding these areas, right?

Based on my visual inspection, does the model essentially run the same with the protected option checked as with not checked, except that it visually preserves those developed areas in the final output?

This technical note may note matter much for the 30m NED runs, but for lidar elevation data, I would think the differences caused by local seawall displacements and the like would be significant.

Something to consider.

-Dean
#21
Using SLAMM / Re: Command Line Option of SLAMM
November 30, 2009, 09:10:37 AM
Is it possible to use relative paths for the infile in the Input Data File and Output Directory paths?

Thanks,
Dean
#22
Model Formulation & Parameters / SLR scenarios
November 24, 2009, 09:14:39 AM
I've noticed when running the one meter fixed scenario to 2100 (25yr timestep), that in the excel output file the "SLR (main)" column for the final year is 1.1275. I assume this column is showing the elevation change in meters for MTL (ie predicted sea level) for each respective year. Does the most recent NWI photo date or some other input date or datum adjustment have an impact on the model's 1m fixed rate by 2100 computation?

thanks,
dean
#23
Using SLAMM / Re: Command Line Option of SLAMM
November 23, 2009, 12:35:50 PM
This is great. Is this going to be available in slamm 6?

I'm relatively new to the command line, but am trying to learn more. Is there a way to have it run successive models, ie for multiple sights successively? I have a large geographic region I'm modeling with 3m lidar data, so I am running into memory limitations. I have 19 sites over a contiguous area and would love to be able to set up a command line input that would run each site successively, instead of having to be here to start each run manually every 4-10 hours?  I know this is somewhat outside of slamm topics, but any help or direction to sites that may be helpful would be greatly appreciated!

thanks,
dean

UPDATE: I think I just figured out how to do this using a batch file.
#24
Using SLAMM / Re: Matching extents
November 18, 2009, 12:44:58 PM
Hi HeatherAnn,

Yes, the extents have to be exactly the same for all model inputs. You can do this in Raster Calculator in ArcMap. Go the the Options in the Spatial Analyst extension toolbar and set the "snap extent to" and "analysis cell size" settings to the same raster for all input rasters, then recreate the ascii files.  I always use my DEM for these settings, once I clip the the site I'm analyzing, so that all the other rasters (nwi, slope, etc) are the same dimensions.  I'm sure there must be other ways to do it though, so others may chime in here.

Good luck,
Dean
#25
Model Formulation & Parameters / Re: subsites
November 18, 2009, 08:18:37 AM
Hmm, but then that leaves the areas along these hand drawn regions with higher error, regarding nwi and ned dates. This would matter more too, the larger the difference in the datasets, for the datum adjustments, right?  What are the coordinates of the corners in the subsites txt file? UTM? If they were in the same coordinate system of the input data files, then one could obtain the exact locations from the shapefiles in ArcMap, and manually correct these in the SLAMM output subsite txt file. Would that be possible, to lessen the error in the subsite "border" regions regarding datum corrections?

-Dean
#26
Model Formulation & Parameters / subsites
November 16, 2009, 01:51:30 PM
Is there a better, more accurate way to define the subsites by creating subsites from polygons,etc?  For example, using a USGS quad as the delineating lines for the different NWI dates and NED dates would be much more accurate than hand drawing approximate boundaries.  Am I missing something about how to do this in slamm 5?  Will slamm 6 have the capability to handle imported polygons for these subsites (or at least a grid file with the correct dates)? I did notice in the site file that there's some reference to this grid-derived date file, but did I overlook the technical notes on how to do it?

Thanks for the help!
Dean
#27
General Discussion / Examples
November 04, 2009, 11:52:34 AM
Here's a link to our first year's outputs for the Georgia coast.  We'll be working in Glynn Co., using LiDAR and more stakeholder involvement for year two.

http://www.rivercenter.uga.edu/research/climate/slr.htm

-Dean
#28
Keil,

I have, but it's not exactly the same and only for Georgia categories.  I've altered the colors somewhat, but feel free to use it.

-Dean
#29
Hi Jonathan,

Thanks!  I'm using v5.0.2 October 2008.  Is there a newer version ready yet?

Actually, a run just completed while having only the "Don't protect" option checked and it came out fine.

Can you check both protect and don't protect and have it run both scenarios in the same run?  I ran a multiple scenario simulation over the weekend.  Everything came out fine except for the developed area not changing in the 1, 1.5, and 2 meter scenarios.  In other words, all files that are protect developed labeled match those not labeled.  Just letting you know.  I ran the model for 10 yr time steps until 2100.

Thanks again,
Dean
#30
Using SLAMM / protection and nwi photo data options
August 31, 2009, 11:18:25 AM
Hello,

It seems that unchecking these in the model does not effect the outputs.  Every run I've completed models the NWI photo date (unchecked or not) and always protects developed, regardless of what's checked.  I've tried with both "Don't Protect" and "Protect Developed..." checked and then with just "Don't Protect" checked, with the same results for all three outputs (the developed is protected).  Any ideas/suggestions?

Thanks,
Dean