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Messages - moorer98

Using SLAMM / Re: Shifting Swamp elevation
August 10, 2012, 06:49:43 PM
Thank you Marco,

That actually helps a lot!!

I will see if the conversion was over 5 percent and check the tide info too. 

I do have a follow up tide gage question.  In the NOAA tide gage database there are some gages that are no long active but still have the old readings, however, they did not have NAVD88 reading like the active gages.  Is there an alternate way to find a NAVD88 figure so one can use this old tide gage data or does it become invalid once NOAA stops recording data?

Thanks again,

Using SLAMM / Shifting Swamp elevation
August 09, 2012, 08:57:49 PM

So I have made my run and I noticed what appears to be a significant shift in my Swamp coverage near the edges of the swamp area (where the elevation is dipping) the Model shifted into transitional Salt marsh between the T0 and the model start year. It is unclear to me how I shift the model so swamp can occur at a lower elevation.  Is that done in the elevation analysis window?  I was looking at that window with the 5 and 95 percentile information and was not completely sure how to interpret what I was looking at. Also I may have to shift a couple other wetland types. I feel like this should be an easy fix but I am not sure where to start.

Thank you for any assistance you can provide.

Using SLAMM / Finding Site Parameters
July 20, 2012, 10:28:47 AM
Hello all,

I have another good novice question, are there "default" site parameters one can use for setting up a run?  I was able to get some info from the NOAA gage data but it is unclear to me how the other site parameters are derived.  Short of finding the info in a lit review are there numbers that work out as a "good guess" for the parameter entry?

Thank you,

Using SLAMM / What about the dry land?
July 10, 2012, 09:12:19 AM
So, maybe this is yet another dumb novice question, but do you need to add data to the NoData (aka not a wetland) areas on the NWI data layer?  In my reading of the forum and tech docs it seems like this is taken care of by using the impervious data layer, but I just wanted to make sure that I did not have to do something else to the NWI data.


Using SLAMM / Getting the layers to line up?
July 08, 2012, 10:44:19 PM
So, i have come up with another novice question.

I have all my layers in USA_CONTIGUOUS_ALBERS_EQUAL_AREA_CONIC and i have an output for a test area now for all five layers(DEM, DIK, IMP, SLP, NWI)  with the same number of rows and columns but the start point is a little different for each one. 

Is it ok if I tweak the ASCII file start corner by less than a meter for the sake of uniformity? 

What is the best course of action?

Thank you,


I am a student working on my first SLAMM, so I hope this is not a dumb question.  I have compiled most of my data sets but I was wondering to what extent does one need to model out to?  I realize that the area needs to be rectangular, but can my input data be the smallest rectangle that the study area falls into or do you need to model all the way to the ocean?  I have data to the ocean, but in processing it in ArcGIS I am realizing that the area is "big" in that I am using LIDAR data and currently using a 1 meter pixel size.  This brings me to my next question, does it make sense to export the ASCII files at 1 meter or should I increase the pixel size?

Thank you,