Fix NLCD codes. #32
Fix NLCD codes. #32
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| 'short_grass_prairie': {'nlcd': 95, 'ki': 1, 'cn': {'a': 98, 'b': 98, 'c': 98, 'd': 98}}, # noqa | ||
| 'desert': {'nlcd': 95, 'ki': 1, 'cn': {'a': 98, 'b': 98, 'c': 98, 'd': 98}}, # noqa | ||
| 'chaparral': {'nlcd': 52, 'ki': 1, 'cn': {'a': 35, 'b': 56, 'c': 70, 'd': 77}}, # noqa | ||
| 'tall_grass_prairie': {'nlcd': 85, 'ki': 0.6, 'cn': {'a': 35, 'b': 56, 'c': 70, 'd': 77}}, # noqa XXX |
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Is this XXX indicative of something outstanding to do?
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Yeah, I could not find find solid numbers for type 85. I used the ki from short grass and the curve numbers from "brush in fair condition". I also used similarly imputed event mean concentrations.
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Got it, let's make a corresponding issue for those then.
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I figured that these cannot be worse than the present values, which are all copies of herbaceous wetland.
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In [1], Tallgrass Prairie maps to Urban/Recreational Grasses which I thought would be code 21 (not 85), since |
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According to the 1992 classification scheme, 85 is Urban/Recreational Grasses and 21 is Low Intensity Residential. I will double-check. |
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Our eventual land cover data set will be the NLCD 2011, so prefer that over 1992 classifications if there is a discrepancy. |
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I think we may have a few minor issues. According to http://www.mrlc.gov/nlcd11_leg.php , 21 is undeveloped open space, which does sound like a good analogue for urban grass. If that is the case, then code 85 might be undefined. |
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In any case, if we are using the 2011 scheme, I think that tall grass needs to be 21 and I also need to make another change to the simple app mapping that to 21 instead of 85. |
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Thanks for looking carefully, I appreciate it. Is this consistent with your understanding? |
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Yes, looks good. |
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Okay, I appreciate it. |
Some NLCD codes were incorrect. "Short grass" is of type 81 [1], "chaparral" is of type 52 [2], "desert" is of type 31 [2], and "tall grass" is of type 21 [1]. [1] http://www.asprs.org/a/publications/pers/2003journal/december/2003_dec_1387-1397.pdf p. 1389 [2] http://www.mrlc.gov/nlcd11_leg.php
Some NLCD codes were incorrect. "Short grass" is of type 81 [1], "chaparral" is of type 52 [2], "desert" is of type 31 [2], and "tall grass" is of type 21 [1].
[1] http://www.asprs.org/a/publications/pers/2003journal/december/2003_dec_1387-1397.pdf p. 1389
[2] http://www.mrlc.gov/nlcd11_leg.php