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Hello Jennifer,
OK, the output file (default name catchment.dat) is a text file in the format below:
128 2.080 0.000 0.0 0.000 0.000021 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
129 2.059 0.000 0.0 0.000 0.000006 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
130 2.015 0.000 0.0 0.000 0.000004 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
131 2.091 0.000 0.0 0.000 0.000002 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
132 1.892 0.000 0.0 0.000 0.000002 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
133 2.037 0.000 0.0 0.000 0.000001 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
134 2.048 0.000 0.0 0.000 0.000001 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
135 2.060 0.000 0.0 0.633 0.034735 0.226608 0.169102 0.077283 0.069329 0.030225 0.025388 0.000000 0.000000
136 3.022 0.000 0.0 96.136 25.446408 26.123110 20.403194 9.589547 8.351538 3.490602 2.731892 0.000000 0.000000
I would open it in notepad instead of access. It contains 14 cols. 1 is timestep, 2 is water discharge, 3 and 4 are nothing, 5 is the total sediment discharge volume in m^3 for that timestep, and the next 9 are the voleumes for each of the 9 grainsizes (5 is a sum of these 9).
You can also work out how much different parts of the catchment have gained or lost, by subtracting before and after DEM's for those parts - as was carried out in the Geomorph paper (2005) I recenetly published, that looked at sediment yields from different reaches. Or you can look at the changes in sediment discharge over time (from the catchment.dat file) or even for individual grain sizes.
Hope that helps,
Tom
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To: Thomas J Coulthard
Subject: CAESAR
Hi Tom,
I was in touch with you a while back to say that I was using CAESAR for my dissertation. Now I’ve finally got some results from it, I just have a few questions about the .dat file that I get as the output.
I am running CAESAR in catchment mode and when I get the .dat file output, looking at it in Microsoft access, I have 3 columns in which there are data which I presume is the days in the first column, then the rainfall in the second column, and then is it sediment yield in the third column? And the columns after that are empty. Have I gone wrong somewhere? I hope not.
Are there any instructions for interpreting the data anywhere as I am more concerned with the actual numbers rather then converting back into a raster in ARCmap.
Looking forward to hearing from you,
Jennifer |
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 Jennifer (Jennifer) posted on Sunday, January 14, 2007 - 02:14 pm
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Hi Tom,
So the model is running fine for me and I am getting a .dat file output, but it sounds like something has gone wrong for me as I have 3 columns of data and then the other columns are cempletely empty.
I want to compare sedminet yields and I do not seem to be getting any.
I have checked my inputs thoroughly, my DEM file is ok, and my rainfall file looks good too. I have run the model with and without my bedrock file in it and it makes no difference, there is still no sediment output at all. I have multiple runs of 100 years so I would expect to see something, any ideas what has gone wrong? |
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Hello Jennifer,
Does this happen when you open the catchment.dat file in a program other than access (e.g. Notepad or wordpad?) is it the same with only three columns?
Tom |
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| Jennifer (Jennifer) posted on Monday, January 15, 2007 - 09:19 am
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Yes, when I open it in notepad it is exactly the same, just three columns of data. I have no idea where I am going wrong.
Jennifer |
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Hi Jennifer - I'm not sure what is goign wrong for you here.
I have just downloaded the version from the website (5.1.exe) and run it with the teifi reach example, ticked the checkbox so the output file operates (to catchment.dat) and this is what catchment.dat looks like:
1 10.687 0.000 0.0 0.000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
2 10.152 0.000 0.0 0.000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
3 10.010 0.000 0.0 0.000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
4 10.007 0.000 0.0 0.000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
5 9.941 0.000 0.0 0.000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
6 9.940 0.000 0.0 0.000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000
Lots of columns. Have another look at your set up, and if no joy, then save the config file you are using, and email it to me. That way I can check your parameters.
Tom |
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