This directory contains the documentation on Webb, Rosenzweig and Levine's Global Soil Particle Size Properties published in the Global Ecosystems Database:
*WEBB ET AL SOIL PARTICLE SIZE PROPERTIES_help Global Ecosystems Database Disc A: Chapter 12 Webb, Rosenzweig, and Levine Global Soil Particle Size Properties Continent Codes Zobler Soil Type Potential Storage of Water in Soil Profile Potential Storage of Water in Root Zone Soil Water Model II Soil Profile Thickness Texture-based Potential Storage of Water Depth of Horizon Proportion of Clay in Horizon Proportion of Sand in Horizon Proportion of Silt in Horizon DATA-SET DESCRIPTION Data-Set Name: Webb, Rosenzweig, and Levine Global Soil Particle Size Properties Principal Investigator: Robert S. Webb Cynthia E. Rosenzweig Elissa R. Levine Scientific Reference: (* reprint on CD-ROM) + Webb, Robert S., Cynthia E. Rosenzweig, and Elissa R. Levine, 1991. A Global Data Set of Soil Particle Size Properties. NASA Technical Memorandum 4286. SOURCE Source Data Citation: Webb, R.S., C.E. Rosenzweig, and E.R. Levine. 1991. A Global Data Set of Soil Particle Size Properties. Digital Raster Data on a 1-degree Geographic (lat/long) 180x360 grid. New York: Columbia University Goddard Institute of Space Studies. 0.51 MB. Contributor: Dr. Robert S. Webb NOAA Paleoclimatology Program National Geophysical Data Center 325 Broadway Boulder, CO 80303 USA Distributor: Columbia University, Goddard Institute for Space Studies Vintage: circa 1980's Lineage: (1) Principal Investigators: R.S. Webb, C.E. Rosenzweig, and E.R. Levine Goddard Institute for Space Studies (2) R.S. Webb NOAA National Geophysical Data Center ORIGINAL DESIGN Variables: (1) Continental Classes (2) Zobler Soil Classes (3) Potential Storage of Water in Root Zone (4) Potential Storage of Water in Soil Profile (5) Soil Water Model II (6) Soil Profile Thickness (7) Texture-based Potential Storage of Water (8) Depth of 15 horizons (meters) (9) Proportion of sand in 15 horizons (10) Proportion of silt in 15 horizons (11) Proportion of clay in 15 horizons Origin: FAO/UNESCO Soil Map of the World (1974) -- see Chapter A16X Geographic Reference: lat/long Geographic Coverage: Global Maximum Latitude: +90 degrees (N) Minimum Latitude: -90 degrees (S) Maximum Longitude: +180 degrees (E) Minimum Longitude: -180 degrees (W) Geographic Sampling: Characteristic Classes and Values for 1-degree grid cells Time Period: Modern, circa 1971-1981 Temporal Sampling: Modern composite INTEGRATED DATA-SET Data-Set Citation: Webb, Robert S., Cynthia E. Rosenzweig, and Elissa R. Levine. 1992. A Global Data Set of Soil Particle Size Properties. Digital Raster Data on a 1-degree Geographic (lat/long) 180x360 grid. In: Global Ecosystems Database Version 1.0: Disc A. Boulder, CO: NOAA National Geophysical Data Center. 2 independent and one derived spatial layer with 65 attributes, on CD- ROM, 16.5 MB. [first published in 1991] Analyst: Robert S. Webb Mark A. Ohrenschall Projection: Geographic (lat/long), GED window (see User's Guide). Spatial Representation: Characteristic classes and values within 1-degree grid cells. Temporal Representation: Modern composite Data Representation: (1) Continental Classes 1-byte integer class codes (2) Zobler Soil Classes 1-byte integer class codes (3) Potential Storage of Water in Root Zone 2-byte integers (mm) (4) Potential Storage of Water in Soil Profile 2-byte integers (mm) (5) Soil Water Model II 2-byte integers (mm) (6) Soil Profile Thickness 2-byte integers (cm) (7) Texture-based Potential Storage of Water 2-byte integers (mm) (8) Depth of 15 horizons (meters) 4-byte real (meters +/- .001) (9) Proportion of sand in 15 horizons 4-byte real (+/- .001) (10) Proportion of silt in 15 horizons 4-byte real (+/- .001) (11) Proportion of clay in 15 horizons 4-byte real (+/- .001) Layers and Attributes: 2 independent and 1 derived spatial layers with 65 attribute layers (stored as raster data files). Compressed Data Volume: 602,458 bytes ADDITIONAL REFERENCES Abramopoulos, F., Rosenzweig, C., and Choudhury, B., 1988. Improved Ground Hydrology Calculations for Global Climate Models (GCMS): Soil Water Movement and Evaporation. Journal of Climate, 1, 921-941. Bouwman, A.F., Fung, I.Y., Matthews, E.E., and John, J.G., 1991. Global model of Nitrous Oxides production from natural soils. Global Biogeochemical Cycles, submitted. Buol, S.W., Hole, F.D., McCracken, R.J., 1973. Soil Genesis and Classification. The Iowa State University Press, Ames, Iowa. Delworth, T.L., and Manage, S., 1988. The influence of potential evaporation of the variabilities of simulated soil wetness and climate. Journal of Climate, 1, 523-547. FAO-UNESCO, 1971-1981. Soil Map of the World, 1:5,000,000, Volumnes II-X. UNESCO, Paris. Hansen, J., Russell, G., Rind, D., Stone, P., Lacis, A., Lebedeff, S., Reudy, R., and Travis, L., 1983. Efficient three-dimensional global models for climate studies. Monthly Weather Review, 111, 609-662. Henderson-Sellers, A., Wilson, M.F., Thomas, R., and Dickinson, R.E., 1986. Current Global Land-Surface Data Sets for Use in Climate-Related Studies. NCAR Technical Note NCAR/TN-272+STR. Kellog, W.W., and Zhao, Z.C., 1988.Sensitivity of soil moisture to doubling of carbon dioxide in climate modeling experiments, I, North America. Journal of Climate, 1, 348-366. Matthews, E., 1984. Prescription of Land-Surface Boundary Conditions in GISS GCM II: A simple method based on high-resolution vegetation data bases. NASA Technical Memorandum #86096. Matthews, E., 1983. Global Vegetation and land use: New high-resolution data bases for climate studies. Journal of Climate and Applied Meteorology, 22, 474-487. Petersen, G.W., Cunningham, R.L. Matelski, R.P., 1968. Available moisture within selected Pennsylvania soil series. Pennsylvania State University Agronomy Series #3, 21pp. Rind, D., 1988. The Doubled CO2 Climate and the Sensitivity of the Modeled Hydrologic Cycle. Journal of Geophysical Research, 93 (D5), 5386-5412. Rind, D., Goldberg, R., Hansen, J., Rosenzweig, C., and Ruedy, R., 1990. Potential evapotranspiration and the likelihood of future drought. Journal of Geophysical Research, 95 (D7), 9983-10004. Soil Science Society of America, 1987. Glossary of Soil Science Terms. Soil Science Society of America. Madison, WI. Webb, R.S., 1990. Late Quaternary Water-Level Fluctuations in the Northeastern Unites States. Brown University Ph.D. thesis, Providence, RI. Zobler, L., 1986. A World Soil File for Global Climate Modeling. NASA Technical Memorandum #87802. TECHNICAL REPORT Mark Ohrenschall, NOAA/NESDIS National Geophysical Data Center Boulder, CO The following is an excerpt from documentation provided by Robert S. Webb. This selection refers to a data file containing depth and soil particle size information. Note that references to 106 entries in the data array (corresponding to Zobler soil types) is a typographical error, and the correct figure is 107. The data has been organized as four 106x10x15 [sic] dimensioned real*4 arrays: depth, sand, silt, and clay. The first dimension (106) [sic] corresponds to the sequence number of the soil types in Zobler's (1986) World Soil Data File. The second dimension (10) corresponds to the volume numbers of the nine major continental divisions in FAO/UNESCO Soil Map of the World, Vols. 2-10 (1971-81). The third dimension (15) corresponds to the individual horizons with data for each soil type from the Morphological, Chemical and Physical Properties Appendix in each of the nine volumes of the FAO/UNESCO Soil Map of the World (1971-81). The data in the sand, silt, and clay arrays are stored as proportional values for each soil horizon. The arbitrary particle size distribution summing to 100 percent included for Histosols (entries 61-63 in first dimension of each array) should not be used. Instead, values reflecting the physical properties of organic soils and appropriate for specific research objectives should be inserted. The data in the depth array are scaled in meters with the first value being 0m depth for each soil type and the subsequent values the contact depths of contiguous horizons. By definition the depth array contains one extra value for the third dimension corresponding to the bottom depth of the lowest horizon for each soil type. Within the data set, no soil type had more than 14 soil horizons. In cases when the number of horizons in a soil type was less than 14, we used -1.0 values to flag the end of record of each soil type. For example, a soil type with 10 horizons has 10 data entries in the sand, silt, and clay arrays, 11 data entries for the depth array, and -1.0 values for entries 11 - 15 in each array (entries 12 - 15 for the depth array). Some technical notes are given regarding the 107x10x15 data array for those interested: 1) A code for ocean was added to the group of nine continent codes, thus accounting for the 10 elements of the second dimension of the data array. The data array for all soil horizons for all soil types for this continent code was zero-filled. 2) The data array was an ASCII text file with four columns of numbers, each column corresponding to one of the four variables, namely depth, sand, silt, or clay. Thus each array element was actually a line of text containing four data values for the four variables. 3) The ordering of the array elements into the (one-dimensional) data file was such that the 107 soil types vary slowest, the 10 continent codes vary faster, and the 15 soil horizons vary fastest. In other words, if an element's position in the array is given by the indices (i,j,k) where 1 <= i <= 107, 1 <= j <=10, and 1 <= k <= 15 then the position of that element in the data file is given by ((i - 1) *15 * 10) + ((j - 1) * 15) + k = ((i - 1) * 10 + j - 1) * 15 + k. The first stage in producing the IDRISI format for the data array was to separate the data by variable (depth, sand, silt, and clay) and by horizon number (one through 15) into 60 attribute values files. Each attribute values file would be composed of feature identification codes corresponding to each of the 107 soil types for each of the 10 continent codes (explained below), with each feature I.D. being paired with a data value. The data value for each feature I.D. was read from the appropriate position in the data array (given above). In other words, the first and second dimensions of the data array were merged into a single dimension with 107 * 10 = 1070 elements, and the third and fourth dimensions (the fourth dimension is the variable) were also merged into a single dimension with 15 * 4 = 60 elements. Here the elements of the first merged dimension are "continental soil type" (the feature I.D.'s) and data value pairs , and the elements of the second merged dimension are attribute values files, named after variable and soil horizon. The second stage in producing the IDRISI format was to create the spatial map associated with the attribute values files. This spatial map would be the feature definition file that uses the continental soil types as links between the data values and geographic locations. Since the soil types and the continental divisions are already spatially defined it only remained to produce the map of continental soil types. This was done by overlaying the map of continent codes (WRCONT) multiplied by 1000 with the map of soil types (WRZSOL) via addition1. Both the original continent codes and the original soil types can be recovered from this map, the continent code by performing integer division by 1000, and the soil type by taking the continental soil type modulo 1000. The final stage in producing the IDRISI format was to produce 60 separate raster grids from the 60 attribute values files and the single feature definition file. This was done by running the IDRISI module ASSIGN on the feature definition file and on each of the 60 attribute values files. The ASSIGN module creates an output grid from an input grid and an attribute values file, using the input grid (whose cells take on feature I.D.'s as values) to define the locations of the data values found in the attribute values file. The appropriate data values are taken from the attribute values file according to the feature I.D.'s paired with each data value. Thus if a cell in the input grid has a value p and the attribute values file has a feature I.D. and data value pair (p,z) then the cell with the corresponding position in the output grid will take on the value z. Note that feature I.D.'s in attribute values files must be unique, but feature I.D.'s in the feature definition file may occur many times. _______________________________ 1This was done by running the IDRISI module SCALAR on WRCONT, choosing the multiply option and specifying 1000, creating a temporary file, for example WRCONTE4. Then the IDRISI module OVERLAY was run on this file and on WRZSOIL, choosing the addition option and thus creating the feature definition file, for example WRCZSOL. An algebraic notation for this series of operations would be: WRCZSOL = WRCONTE4 + WRZSOIL, where WRCONTE4 = 1000 * WRCONT, or WRCZSOL = (1000 * WRCONT) + WRZSOIL. *WEBB ET AL SOIL PARTICLE SIZE PROPERTIES ANCILLARY ENVIRONMENTAL DATA Webb Continent Codes #\data\ncillary\wrcont.img Webb Zobler Soil Type #\data\ncillary\wrzsoil.img Webb Potential Storage of Water in Soil Profile #\data\ncillary\wrprof.img Webb Potential Storage of Water in Root Zone #\data\ncillary\wrroot.img Webb Soil Water Model II #\data\ncillary\wrmodii.img Webb Soil Profile Thickness #\data\ncillary\wrsoil.img Webb Texture-based Potential Storage of Water #\data\ncillary\wrtext.img Depth of Horizon #*DEPTH OF HORIZON Proportion of Clay in Horizon #*PROPORTION OF CLAY IN HORIZON Proportion of Sand in Horizon #*PROPORTION OF SAND IN HORIZON Proportion of Silt in Horizon #*PROPORTION OF SILT IN HORIZON Scanned Documentation #*WR SCANNED DOCUMENTATION *WR SCANNED DOCUMENTATION_help The scanned documentation noted here is contained in the \document directory on the CD-ROM as .gif files. These files can be read by any computer program that reads PC Paintbrushformat files. The GeoVu software provided on this CD-ROM contains such a utility. To use the GeoVu utility, merely select the appropriate file from this menu, using the "Open Data" option that you have been using to this point. If you are VERY NEW to GeoVu, you can open a file by 1. Selecting "File" from the options at the top of your screen. 2. After selecting "File" select "Open Data" from the options that appear in the pull-down menu. 3. Follow the hierarchy of menu paths to the data of your choice. 4. When the hierarchy leads you to a topic "Scanned Documentation" merely select that topic. The next topic should read "Page 1, Page 2,... etc." or "Paper 1 Page 1, Paper 1 Page 2, .... Paper 2 Page 1.... etc. You can select the pages manually, or create a "slide show" under the Utilities option at the top of the screen. The first time the .gif file displays it might be reduced in size. This is a "feature" of current versions of GeoVu that might be improved in the future. If you redisplay the image (by selecting "Search" from the options at the top of the screen, then "Create" from the menu thus pulled down, you can modify the parameter that sets the sampling rate from "n" [usually 2, 3, 4, or 5] to 1). This will give you full resolution display of the scanned documentation. It should be noted that this scanned documentation is a compromise. We originally attempted to use optical character recognition software to convert the scanned documentation to more usable text. However, the technology was too immature at the time of scanning (1992) to use successfully. Indeed, as of this writing (late 1995) the technology is still too immature for convenient application to this problem. Thus, we present the scanned documentation as images. NOTE: Many of the original documents are not copyright, and may be reproduced freely. However, several other documents ARE copyright. The National Geophysical Data Center has obtained permission to reproduce all documents with a valid copyright. However, this permission does not pass automatically to anyone else. Thus, though all of the data on this CD-ROM are unrestricted, much of the scanned documentation (which contains copyright notices) may not be distributed further, without permission of the copyright holder, or without a dontribution made to the Copyright Clearance Center under the rules noted in the individual papers. (Also note that a few documents authored by U. S. Government employees or contractors as part of their work for the Government, had copyrights claimed by the journals that published the papers. Such documents are not subject to copyright, and the copyright claims of said journals have been determined to be meritless.) *WR SCANNED DOCUMENTATION WEBB ET AL SOIL PARTICLE SIZE PROPERTIES Page 1 #\document\ncillary\wr\wr_001.gif Page 2 #\document\ncillary\wr\wr_002.gif Page 3 #\document\ncillary\wr\wr_003.gif Page 4 #\document\ncillary\wr\wr_004.gif Page 5 #\document\ncillary\wr\wr_005.gif Page 6 #\document\ncillary\wr\wr_006.gif Page 7 #\document\ncillary\wr\wr_007.gif Page 8 #\document\ncillary\wr\wr_008.gif Page 9 #\document\ncillary\wr\wr_009.gif Page 10 #\document\ncillary\wr\wr_010.gif Page 11 #\document\ncillary\wr\wr_011.gif Page 12 #\document\ncillary\wr\wr_012.gif Page 13 #\document\ncillary\wr\wr_013.gif Page 14 #\document\ncillary\wr\wr_014.gif Page 15 #\document\ncillary\wr\wr_015.gif Page 16 #\document\ncillary\wr\wr_016.gif Page 17 #\document\ncillary\wr\wr_017.gif Page 18 #\document\ncillary\wr\wr_018.gif Page 19 #\document\ncillary\wr\wr_019.gif Page 20 #\document\ncillary\wr\wr_020.gif Page 21 #\document\ncillary\wr\wr_021.gif Page 22 #\document\ncillary\wr\wr_022.gif Page 23 #\document\ncillary\wr\wr_023.gif Page 24 #\document\ncillary\wr\wr_024.gif Page 25 #\document\ncillary\wr\wr_025.gif Page 26 #\document\ncillary\wr\wr_026.gif Page 27 #\document\ncillary\wr\wr_027.gif Page 28 #\document\ncillary\wr\wr_028.gif Page 29 #\document\ncillary\wr\wr_029.gif Page 30 #\document\ncillary\wr\wr_030.gif Page 31 #\document\ncillary\wr\wr_031.gif Page 32 #\document\ncillary\wr\wr_032.gif Page 33 #\document\ncillary\wr\wr_033.gif Page 34 #\document\ncillary\wr\wr_034.gif Page 35 #\document\ncillary\wr\wr_035.gif Page 36 #\document\ncillary\wr\wr_036.gif Page 37 #\document\ncillary\wr\wr_037.gif *WEBB CONTINENT CODES_help DATA ELEMENT: Continent Codes STRUCTURE: Raster Data Files:1-degree GED 180x360 grid (see User's Guide) SERIES: NONE SPATIAL META-DATA: WRCONT.DOC file title : Webb et al Continent Codes from the FAO/UNESCO Soil Map of the World data type : byte file type : binary columns : 360 rows : 180 ref. system : lat/long ref. units : deg unit dist. : 1.0000000 min. X : -180.0000000 max. X : 180.0000000 min. Y : -90.0000000 max. Y : 90.0000000 pos'n error : unknown resolution : 1.0000000 min. value : 0 max. value : 10 value units : classes value error : unknown flag value : none flag def'n : none legend cats : 11 category 0 : 0 OCEAN category 1 : 1 not used category 2 : 2 N (NAM) NAMERICA category 3 : 3 C (MCA) MEXICEAM category 4 : 4 S (SAM) SAMERICA category 5 : 5 E (EUR) EUROPE category 6 : 6 A (AFR) AFRICA category 7 : 7 I (SCA) SCASIA category 8 : 8 U (NCA) NCASIA category 9 : 9 E (SEA) SEASIA category 10 : 10 T (AUS) AUSTRALI comment : Continent codes correspond to volume numbers of the FAO/UNESCO comment : Soil Map of the World (1971-81). ATTRIBUTE META-DATA: NONE NOTES: (1) Continent codes correspond to volume numbers of the FAO/UNESCO (2) Soil Map of the World (1971-81) *WEBB ZOBLER SOIL TYPE_help DATA ELEMENT: Zobler Soil Type STRUCTURE: Raster Data Files:1-degree GED 180x360 grid (see User's Guide) SERIES: NONE SPATIAL META-DATA: WRZSOIL.DOC file title : Webb et al Soil Particle Size Properties Zobler Soil Types data type : byte file type : binary columns : 360 rows : 180 ref. system : lat/long ref. units : deg unit dist. : 1.0000000 min. X : -180.0000000 max. X : 180.0000000 min. Y : -90.0000000 max. Y : 90.0000000 pos'n error : unknown resolution : 1.0000000 min. value : 0 max. value : 107 value units : classes value error : unknown flag value : none flag def'n : none legend cats : 108 category 0 : 0 WATER WATER/OCEAN/LAKE category 1 : 1 AF FERRIC ACRISOL category 2 : 2 AG GLEYIC ACRISOL category 3 : 3 AH HUMIC ACRISOL category 4 : 4 AO ORTHIC ACRISOL category 5 : 5 AP PLINTHIC ACRISOL category 6 : 6 BC CHROMIC CAMBISOL category 7 : 7 BD DYSTRIC CAMBISOL category 8 : 8 BE EUTRIC CAMBISOL category 9 : 9 BF FERRALIC CAMBISOL category 10 : 10 BG GLEYIC CAMBISOL category 11 : 11 BH HUMIC CAMBISOL category 12 : 12 BK CALCIC CAMBISOL category 13 : 13 BV VERTIC CAMBISOL category 14 : 14 BX GELIC CAMBISOL category 15 : 15 CG GLOSSIC CHERNOZEM category 16 : 16 CH HAPLIC CHERNOZEM category 17 : 17 CK CALCIC CHERNOZEM category 18 : 18 CL LUVIC CHERNOZEM category 19 : 19 DD DYSTRIC PODZOLUVISOL category 20 : 20 DE EUTRIC PODZOLUVISOL category 21 : 21 DG GLEYIC PODZOLUVISOL category 22 : 22 E RENDZINA category 23 : 23 FA ACRIC FERRALSOL category 24 : 24 FH HUMIC FERRALSOL category 25 : 25 FO ORTHIC FERRALSOL category 26 : 26 FP PLINTHIC FERRALSOL category 27 : 27 FR RHODIC FERRALSOL category 28 : 28 FX XANTHIC FERRALSOL category 29 : 29 GC CALCARIC GLEYSOL category 30 : 30 GD DYSTRIC GLEYSOL category 31 : 31 GE EUTRIC GLEYSOL category 32 : 32 GH HUMIC GLEYSOL category 33 : 33 GM MOLLIC GLEYSOL category 34 : 34 GP PLINTHIC GLEYSOL category 35 : 35 GX GELIC GLEYSOL category 36 : 36 HC CALCARIC PHAEOZEM category 37 : 37 HG GLEYIC PHAEOZEM category 38 : 38 HH HAPLIC PHAEOZEM category 39 : 39 HL LUVIC PHAEOZEM category 40 : 40 I LITHOSOL category 41 : 41 JC CALCARIC FLUVISOL category 42 : 42 JD DYSTRIC FLUVISOL category 43 : 43 JE EUTRIC FLUVISOL category 44 : 44 JT THIONIC FLUVISOL category 45 : 45 KH HAPLIC KASTANOZEM category 46 : 46 KK CALCIC KASTANOZEM category 47 : 47 KL LUVIC KASTANOZEM category 48 : 48 LA ALBIC LUVISOL category 49 : 49 LC CHROMIC LUVISOL category 50 : 50 LF FERRIC LUVISOL category 51 : 51 LG GLEYIC LUVISOL category 52 : 52 LK CALCIC LUVISOL category 53 : 53 LO ORTHIC LUVISOL category 54 : 54 LP PLINTHIC LUVISOL category 55 : 55 LV VERTIC LUVISOL category 56 : 56 MG GLEYIC GREYZEM category 57 : 57 MO ORTHIC GREYZEM category 58 : 58 ND DYSTRIC NITOSOL category 59 : 59 NE EUTRIC NITOSOL category 60 : 60 NH HUMIC NITOSOL category 61 : 61 OD DYSTRIC HISTOSOL category 62 : 62 OE EUTRIC HISTOSOL category 63 : 63 OX GELIC HISTOSOL category 64 : 64 PF FERRIC PODZOL category 65 : 65 PG GLEYIC PODZOL category 66 : 66 PH HUMIC PODZOL category 67 : 67 PL LEPTIC PODZOL category 68 : 68 PO ORTHIC PODZOL category 69 : 69 PP PLACIC PODZOL category 70 : 70 QA ALBIC ARENOSOL category 71 : 71 QC CAMBIC ARENOSOL category 72 : 72 QF FERRALIC ARENOSOL category 73 : 73 QL LUVIC ARENOSOL category 74 : 74 RC CALCARIC REGOSOL category 75 : 75 RD DYSTRIC REGOSOL category 76 : 76 RE EUTRIC REGOSOL category 77 : 77 RX GELIC REGOSOL category 78 : 78 SG GLEYIC SOLONETZ category 79 : 79 SM MOLLIC SOLONETZ category 80 : 80 SO ORTHIC SOLONETZ category 81 : 81 TH HUMIC ANDOSOL category 82 : 82 TM MOLLIC ANDOSOL category 83 : 83 TO OCHRIC ANDOSOL category 84 : 84 TV VITRIC ANDOSOL category 85 : 85 U RANKER category 86 : 86 VC CHROMIC VERTISOL category 87 : 87 VP PELLIC VERTISOL category 88 : 88 WD DYSTRIC PLANOSOL category 89 : 89 WE EUTRIC PLANOSOL category 90 : 90 WH HUMIC PLANOSOL category 91 : 91 WM MOLLIC PLANOSOL category 92 : 92 WS SOLODIC PLANOSOL category 93 : 93 WX GELIC PLANOSOL category 94 : 94 XH HAPLIC XEROSOL category 95 : 95 XK CALCIC XEROSOL category 96 : 96 XL LUVIC XEROSOL category 97 : 97 XY GYPSIC XEROSOL category 98 : 98 YH HAPLIC YERMOSOL category 99 : 99 YK CALCIC YERMOSOL category100 : 100 YL LUVIC YERMOSOL category101 : 101 YT TAKYRIC YERMOSOL category102 : 102 YY GYPSIC YERMOSOL category103 : 103 ZG GLEYIC SOLONCHAK category104 : 104 ZM MOLLIC SOLONCHAK category105 : 105 ZO ORTHIC SOLONCHAK category106 : 106 ZT TAKYRIC SOLONCHAK category107 : 107 ICE GLACIER/ICE ATTRIBUTE META-DATA: NONE NOTES: NONE *WEBB POTENTIAL STORAGE OF WATER IN SOIL PROFILE_help DATA ELEMENT: Potential Storage of Water in Soil Profile STRUCTURE: Raster Data Files:1-degree GED 180x360 grid (see User's Guide) SERIES: NONE SPATIAL META-DATA: WRPROF.DOC file title : Webb et al Potential Storage of Water in Soil Profile (mm) data type : integer file type : binary columns : 360 rows : 180 ref. system : lat/long ref. units : deg unit dist. : 1.0000000 min. X : -180.0000000 max. X : 180.0000000 min. Y : -90.0000000 max. Y : 90.0000000 pos'n error : unknown resolution : 1.0000000 min. value : 0 max. value : 4432 value units : millimeters value error : unknown flag value : 1 flag def'n : ice legend cats : 0 ATTRIBUTE META-DATA: NONE NOTES: NONE *WEBB POTENTIAL STORAGE OF WATER IN ROOT ZONE_help DATA ELEMENT: Potential Storage of Water in Root Zone STRUCTURE: Raster Data Files:1-degree GED 180x360 grid (see User's Guide) SERIES: NONE SPATIAL META-DATA: WRROOT.DOC file title : Webb et al Potential Storage of Water in Root Zone (mm) data type : integer file type : binary columns : 360 rows : 180 ref. system : lat/long ref. units : deg unit dist. : 1.0000000 min. X : -180.0000000 max. X : 180.0000000 min. Y : -90.0000000 max. Y : 90.0000000 pos'n error : unknown resolution : 1.0000000 min. value : 0 max. value : 1700 value units : millimeters value error : unknown flag value : 1 flag def'n : ice legend cats : 0 ATTRIBUTE META-DATA: NONE NOTES: NONE *WEBB SOIL WATER MODEL II_help DATA ELEMENT: Soil Water Model II STRUCTURE: Raster Data Files:1-degree GED 180x360 grid (see User's Guide) SERIES: NONE SPATIAL META-DATA: WRMODII.DOC file title : Webb et al Model II Soil Water (mm) data type : integer file type : binary columns : 360 rows : 180 ref. system : lat/long ref. units : deg unit dist. : 1.0000000 min. X : -180.0000000 max. X : 180.0000000 min. Y : -90.0000000 max. Y : 90.0000000 pos'n error : unknown resolution : 1.0000000 min. value : 0 max. value : 650 value units : millimeters value error : unknown flag value : 1 flag def'n : ice legend cats : 0 ATTRIBUTE META-DATA: NONE NOTES: NONE *WEBB SOIL PROFILE THICKNESS_help DATA ELEMENT: Soil Profile Thickness STRUCTURE: Raster Data Files:1-degree GED 180x360 grid (see User's Guide) SERIES: NONE SPATIAL META-DATA: WRSOIL.DOC file title : Webb et al Soil Profile Thickness (cm) data type : integer file type : binary columns : 360 rows : 180 ref. system : lat/long ref. units : deg unit dist. : 1.0000000 min. X : -180.0000000 max. X : 180.0000000 min. Y : -90.0000000 max. Y : 90.0000000 pos'n error : unknown resolution : 1.0000000 min. value : 0 max. value : 800 value units : centimeters value error : unknown flag value : 1 flag def'n : ice legend cats : 0 ATTRIBUTE META-DATA: NONE NOTES: NONE *WEBB TEXTURE-BASED POTENTIAL STORAGE OF WATER_help DATA ELEMENT: Texture-based Potential Storage of Water STRUCTURE: Raster Data Files:1-degree GED 180x360 grid (see User's Guide) SERIES: NONE SPATIAL META-DATA: WRTEXT.DOC file title : Webb et al Texture-Based Potential Storage of Water (mm) data type : integer file type : binary columns : 360 rows : 180 ref. system : lat/long ref. units : deg unit dist. : 1.0000000 min. X : -180.0000000 max. X : 180.0000000 min. Y : -90.0000000 max. Y : 90.0000000 pos'n error : unknown resolution : 1.0000000 min. value : 0 max. value : 2160 value units : millimeters value error : unknown flag value : 1 flag def'n : ice legend cats : 0 ATTRIBUTE META-DATA: NONE NOTES: NONE *DEPTH OF HORIZON_help DATA ELEMENT: Depth of Horizon STRUCTURE: Raster Data Files:1-degree GED 180x360 grid (see User's Guide) SERIES: 15 soil horizons SPATIAL META-DATA: WRDEP01.DOC file title : Webb et al Soil Properties: depth for horizon 1 data type : real file type : binary columns : 360 rows : 180 ref. system : lat/long ref. units : deg unit dist. : 1.0000000 min. X : -180.0000000 max. X : 180.0000000 min. Y : -90.0000000 max. Y : 90.0000000 pos'n error : unknown resolution : 1.0000000 min. value : 0.0000000 max. value : 0.1400000 value units : meters value error : unknown flag value : -1.0000000 flag def'n : end of record for soil type legend cats : 0 File Series Parameters: File Horizon Minimum Maximum WRDEP01 1 0.0000000 0.1400000 WRDEP02 2 0.0000000 3.5999999 WRDEP03 3 0.0000000 1.0500000 WRDEP04 4 0.0000000 3.5999999 WRDEP05 5 0.0000000 3.5999999 WRDEP06 6 0.0000000 5.0000000 WRDEP07 7 0.0000000 8.0000000 WRDEP08 8 0.0000000 7.0000000 WRDEP09 9 0.0000000 3.5999999 WRDEP10 10 0.0000000 3.0230000 WRDEP11 11 0.0000000 3.0480001 WRDEP12 12 0.0000000 3.5309999 WRDEP13 13 0.0000000 2.7000000 WRDEP14 14 0.0000000 2.2300000 WRDEP15 15 0.0000000 2.4600000 ATTRIBUTE META-DATA: NONE NOTES: NONE *DEPTH OF HORIZON WEBB ET AL SOIL PARTICLE SIZE PROPERTIES Horizon 1 #\data\ncillary\wrdep01.img Horizon 2 #\data\ncillary\wrdep02.img Horizon 3 #\data\ncillary\wrdep03.img Horizon 4 #\data\ncillary\wrdep04.img Horizon 5 #\data\ncillary\wrdep05.img Horizon 6 #\data\ncillary\wrdep06.img Horizon 7 #\data\ncillary\wrdep07.img Horizon 8 #\data\ncillary\wrdep08.img Horizon 9 #\data\ncillary\wrdep09.img Horizon 10 #\data\ncillary\wrdep10.img Horizon 11 #\data\ncillary\wrdep11.img Horizon 12 #\data\ncillary\wrdep12.img Horizon 13 #\data\ncillary\wrdep13.img Horizon 14 #\data\ncillary\wrdep14.img Horizon 15 #\data\ncillary\wrdep15.img *PROPORTION OF CLAY IN HORIZON_help DATA ELEMENT: Proportion of Clay in Horizon STRUCTURE: Raster Data Files:1-degree GED 180x360 grid (see User's Guide) SERIES: 15 soil horizons SPATIAL META-DATA: WRCLA01.DOC file title : Webb et al Soil Properties: clay in horizon 1 data type : real file type : binary columns : 360 rows : 180 ref. system : lat/long ref. units : deg unit dist. : 1.0000000 min. X : -180.0000000 max. X : 180.0000000 min. Y : -90.0000000 max. Y : 90.0000000 pos'n error : unknown resolution : 1.0000000 min. value : 0.0000000 max. value : 0.7700000 value units : proportional value value error : unknown flag value : -1.0000000 flag def'n : missing soil type legend cats : 0 File Series Parameters: File Horizon Minimum Maximum WRCLA01 1 0.0000000 0.7700000 WRCLA02 2 0.0000000 0.8400000 WRCLA03 3 0.0000000 0.9180000 WRCLA04 4 0.0000000 0.9300000 WRCLA05 5 0.0000000 0.9140000 WRCLA06 6 0.0000000 0.9180000 WRCLA07 7 0.0000000 0.7500000 WRCLA08 8 0.0000000 0.6400000 WRCLA09 9 0.0000000 0.6800000 WRCLA10 10 0.0000000 0.7500000 WRCLA11 11 0.0000000 0.7600000 WRCLA12 12 0.0000000 0.7800000 WRCLA13 13 0.0000000 0.3780000 WRCLA14 14 0.0000000 0.3620000 WRCLA15 15 0.0000000 0.0000000 ATTRIBUTE META-DATA: NONE NOTES: NONE *PROPORTION OF CLAY IN HORIZON WEBB ET AL SOIL PARTICLE SIZE PROPERTIES Horizon 1 #\data\ncillary\wrcla01.img Horizon 2 #\data\ncillary\wrcla02.img Horizon 3 #\data\ncillary\wrcla03.img Horizon 4 #\data\ncillary\wrcla04.img Horizon 5 #\data\ncillary\wrcla05.img Horizon 6 #\data\ncillary\wrcla06.img Horizon 7 #\data\ncillary\wrcla07.img Horizon 8 #\data\ncillary\wrcla08.img Horizon 9 #\data\ncillary\wrcla09.img Horizon 10 #\data\ncillary\wrcla10.img Horizon 11 #\data\ncillary\wrcla11.img Horizon 12 #\data\ncillary\wrcla12.img Horizon 13 #\data\ncillary\wrcla13.img Horizon 14 #\data\ncillary\wrcla14.img Horizon 15 #\data\ncillary\wrcla15.img *PROPORTION OF SAND IN HORIZON_help DATA ELEMENT: Proportion of Sand in Horizon STRUCTURE: Raster Data Files:1-degree GED 180x360 grid (see User's Guide) SERIES: 15 soil horizons SPATIAL META-DATA: WRSAN01.DOC file title : Webb et al Soil Properties: sand in horizon 1 data type : real file type : binary columns : 360 rows : 180 ref. system : lat/long ref. units : deg unit dist. : 1.0000000 min. X : -180.0000000 max. X : 180.0000000 min. Y : -90.0000000 max. Y : 90.0000000 pos'n error : unknown resolution : 1.0000000 min. value : 0.0000000 max. value : 0.9800000 value units : proportional value value error : unknown flag value : -1.0000000 flag def'n : missing soil type legend cats : 0 File Series Parameters: File Horizon Minimum Maximum WRSAN01 1 0.0000000 0.9800000 WRSAN02 2 0.0000000 0.9900000 WRSAN03 3 0.0000000 0.9840000 WRSAN04 4 0.0000000 0.9900000 WRSAN05 5 0.0000000 0.9880000 WRSAN06 6 0.0000000 0.9900000 WRSAN07 7 0.0000000 0.9920000 WRSAN08 8 0.0000000 0.9920000 WRSAN09 9 0.0000000 0.9910000 WRSAN10 10 0.0000000 0.9960000 WRSAN11 11 0.0000000 0.4600000 WRSAN12 12 0.0000000 0.5400000 WRSAN13 13 0.0000000 0.3360000 WRSAN14 14 0.0000000 0.3400000 WRSAN15 15 0.0000000 0.0000000 ATTRIBUTE META-DATA: NONE NOTES: NONE *PROPORTION OF SAND IN HORIZON WEBB ET AL SOIL PARTICLE SIZE PROPERTIES Horizon 1 #\data\ncillary\wrsan01.img Horizon 2 #\data\ncillary\wrsan02.img Horizon 3 #\data\ncillary\wrsan03.img Horizon 4 #\data\ncillary\wrsan04.img Horizon 5 #\data\ncillary\wrsan05.img Horizon 6 #\data\ncillary\wrsan06.img Horizon 7 #\data\ncillary\wrsan07.img Horizon 8 #\data\ncillary\wrsan08.img Horizon 9 #\data\ncillary\wrsan09.img Horizon 10 #\data\ncillary\wrsan10.img Horizon 11 #\data\ncillary\wrsan11.img Horizon 12 #\data\ncillary\wrsan12.img Horizon 13 #\data\ncillary\wrsan13.img Horizon 14 #\data\ncillary\wrsan14.img Horizon 15 #\data\ncillary\wrsan15.img *PROPORTION OF SILT IN HORIZON_help DATA ELEMENT: Proportion of Silt in Horizon STRUCTURE: Raster Data Files:1-degree GED 180x360 grid (see User's Guide) SERIES: 15 soil horizons SPATIAL META-DATA: WRSIL01.DOC file title : Webb et al Soil Properties: silt in horizon 1 data type : real file type : binary columns : 360 rows : 180 ref. system : lat/long ref. units : deg unit dist. : 1.0000000 min. X : -180.0000000 max. X : 180.0000000 min. Y : -90.0000000 max. Y : 90.0000000 pos'n error : unknown resolution : 1.0000000 min. value : 0.0000000 max. value : 0.8670000 value units : proportional value value error : unknown flag value : -1.0000000 flag def'n : missing soil type legend cats : 0 File Series Parameters: File Horizon Minimum Maximum WRSIL01 1 0.0000000 0.8670000 WRSIL02 2 0.0000000 0.8770000 WRSIL03 3 0.0000000 0.8830000 WRSIL04 4 0.0000000 0.8300000 WRSIL05 5 0.0000000 0.8580000 WRSIL06 6 0.0000000 0.7840000 WRSIL07 7 0.0000000 0.8970000 WRSIL08 8 0.0000000 0.7900000 WRSIL09 9 0.0000000 0.7980000 WRSIL10 10 0.0000000 0.8690000 WRSIL11 11 0.0000000 0.6990000 WRSIL12 12 0.0000000 0.7210000 WRSIL13 13 0.0000000 0.7240000 WRSIL14 14 0.0000000 0.7140000 WRSIL15 15 0.0000000 0.0000000 ATTRIBUTE META-DATA: NONE NOTES: NONE *PROPORTION OF SILT IN HORIZON WEBB ET AL SOIL PARTICLE SIZE PROPERTIES Horizon 1 #\data\ncillary\wrsil01.img Horizon 2 #\data\ncillary\wrsil02.img Horizon 3 #\data\ncillary\wrsil03.img Horizon 4 #\data\ncillary\wrsil04.img Horizon 5 #\data\ncillary\wrsil05.img Horizon 6 #\data\ncillary\wrsil06.img Horizon 7 #\data\ncillary\wrsil07.img Horizon 8 #\data\ncillary\wrsil08.img Horizon 9 #\data\ncillary\wrsil09.img Horizon 10 #\data\ncillary\wrsil10.img Horizon 11 #\data\ncillary\wrsil11.img Horizon 12 #\data\ncillary\wrsil12.img Horizon 13 #\data\ncillary\wrsil13.img Horizon 14 #\data\ncillary\wrsil14.img Horizon 15 #\data\ncillary\wrsil15.img