{"id":11640,"date":"2025-04-11T11:58:38","date_gmt":"2025-04-11T16:58:38","guid":{"rendered":"https:\/\/www.agron.iastate.edu\/glsi\/?p=11640"},"modified":"2025-10-01T13:14:36","modified_gmt":"2025-10-01T18:14:36","slug":"iowa-sand-content-gis-data","status":"publish","type":"post","link":"https:\/\/www.agron.iastate.edu\/glsi\/gis-data\/soil-properties-gis-data\/iowa-sand-content-gis-data\/","title":{"rendered":"Iowa Sand Content GIS Data"},"content":{"rendered":"\n<div class=\"wp-block-ugb-container ugb-container ugb-ee96871 ugb-container--v2 ugb-container--design-plain ugb-main-block\"><style>@media screen and (min-width:768px){.ugb-ee96871.ugb-container{margin-bottom:0px !important}}@media screen and (min-width:768px){.ugb-ee96871 > .ugb-inner-block > .ugb-block-content > *{padding-bottom:0px !important}}<\/style><div class=\"ugb-inner-block\"><div class=\"ugb-block-content\"><div class=\"ugb-container__wrapper ugb-ee96871-wrapper\"><div class=\"ugb-container__side\"><div class=\"ugb-container__content-wrapper ugb-ee96871-content-wrapper\"><div\n\tclass=\"paragraph-widget paragraph-widget--text-html\">\n\t<div class=\"text-content\">\n\t\t<h4>Sand content refers to the percentage by weight of mineral soil particles between 0.05 mm and 2 mm in diameter, measured within the &lt;2 mm soil fraction. This classification helps describe soil texture and physical structure. It\u2019s one of the three primary soil separates, alongside silt and clay.<\/h4>\n\n\t<\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-ugb-container ugb-container ugb-8bdbc79 ugb-container--v2 ugb-container--design-plain ugb-main-block\"><style>@media screen and (min-width:768px){.ugb-8bdbc79.ugb-container{margin-bottom:0px !important}}@media screen and (min-width:768px){.ugb-8bdbc79 > .ugb-inner-block > .ugb-block-content > *{padding-top:0px !important;padding-bottom:0px !important}}<\/style><div class=\"ugb-inner-block\"><div class=\"ugb-block-content\"><div class=\"ugb-container__wrapper ugb-8bdbc79-wrapper\"><div class=\"ugb-container__side\"><div class=\"ugb-container__content-wrapper ugb-8bdbc79-content-wrapper\">\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-9cc33fa\" data-block-id=\"9cc33fa\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-9cc33fa-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-001bb93\" data-v=\"4\" data-block-id=\"001bb93\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-001bb93-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-001bb93-inner-blocks\"><div\n\tclass=\"paragraph-widget paragraph-widget--text-html\">\n\t<div class=\"text-content\">\n\t\t<h2>Applied Relevance<\/h2>\n<p>Sand influences water infiltration, drainage, and aeration. Soils high in sand generally have low water-holding capacity and lower nutrient retention. Sand content is essential for interpreting hydrologic behavior, assessing suitability for construction, and determining soil texture class for agricultural use.<\/p>\n<h2>Available Depths<\/h2>\n<p>Mapped data layers are available for the following soil depth intervals:<br data-start=\"998\" data-end=\"1001\">0\u20135 cm, 5\u201320 cm, 0\u201320 cm, 0\u201330 cm, 0\u201350 cm, 0\u2013100 cm, 0\u2013150 cm, and 0\u2013200 cm.<\/p>\n\n\t<\/div>\n<\/div>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-ce9246d\" data-v=\"4\" data-block-id=\"ce9246d\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-ce9246d-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-ce9246d-inner-blocks\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1473\" src=\"https:\/\/www.agron.iastate.edu\/glsi\/files\/2025\/03\/Soil-Sand-Content.gif\" alt=\"\" class=\"wp-image-10604\" \/><\/figure>\n<\/div><\/div><\/div>\n<\/div><\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-ugb-container ugb-container ugb-d1207b7 ugb-container--v2 ugb-container--design-plain ugb-main-block\"><style>.ugb-d1207b7 .ugb-inner-block{text-align:center}@media screen and (min-width:768px){.ugb-d1207b7.ugb-container{margin-bottom:0px !important}}@media screen and (min-width:768px){.ugb-d1207b7 > .ugb-inner-block > .ugb-block-content > *{padding-top:0px !important}}<\/style><div class=\"ugb-inner-block\"><div class=\"ugb-block-content\"><div class=\"ugb-container__wrapper ugb-d1207b7-wrapper\"><div class=\"ugb-container__side\"><div class=\"ugb-container__content-wrapper ugb-d1207b7-content-wrapper\"><div\n\tclass=\"paragraph-widget paragraph-widget--text-html\">\n\t<div class=\"text-content\">\n\t\t<h2 class=\"text-align-center\">GIS Map Folder Download<\/h2>\n<p class=\"text-align-center\">Click the button below to access the GIS data.<\/p>\n\n\t<\/div>\n<\/div>\n\n\n<a href=\"https:\/\/www.agron.iastate.edu\/glsi\/?ddownload=4679\" title=\"Download\" rel=\"nofollow\" class=\"ddownload-button button-yellow id-4679 ext-\">Download<\/a>\n<\/div><\/div><\/div><\/div><\/div><\/div>\n\n\n<div\n\tclass=\"paragraph-widget paragraph-widget--text-html\">\n\t<div class=\"text-content\">\n\t\t<h2>GIS Map Details<\/h2>\n<p>The rasters originate from the Gridded SSURGO (gSSURGO) database, a National Cooperative Soil Survey (NCSS) SSURGO product in the format of an Environmental Systems Research Institute, Inc. (ESRI\u00ae) file geodatabase. Both SSURGO and gSSURGO are considered products of the NCSS partnership. SSURGO generally has the most detailed level of soil geographic data developed by the NCSS in accordance with NCSS mapping standards (1:15,840 scale) and is stored in a vector format which display soil map unit delineations. The gSSURGO product was generated by creating a 10-m resolution raster of the original SSURGO vector data. The soil property tabular data are stored in the National Soil Information System (NASIS) database. For each soil layer, available water capacity, used in the computation of AWS, is recorded as three separate values in the database. A low value and a high value indicate the range of this attribute for the soil component. A \u201crepresentative\u201d value indicates the expected value of this attribute for the component. For the derivation of AWS, only the representative value for available water capacity is used. The available water storage for each map unit component is computed as described above and then aggregated to a single value for the map unit by the process described below. A map unit typically consists of one or more \u201ccomponents.\u201d A component is either some type of soil or some nonsoil entity, e.g., rock outcrop. For the attribute being aggregated (e.g., available water storage), the first step of the aggregation process is to derive one attribute value for each of a map unit\u2019s components. From this set of component attributes, the next step of the process is to derive a single value that represents the map unit as a whole. Once a single value for each map unit is derived, a thematic map for the map units can be generated. Aggregation is needed because map units rather than components are delineated on the soil maps. The composition of each component in a map unit is recorded as a percentage. A composition of 60 indicates that the component typically makes up approximately 60 percent of the map unit. For the available water storage, when a weighted average of all component values is computed, percent composition is the weighting factor.<\/p>\n<h2>Metadata \u2013 Sources \u2013 Limitations<\/h2>\n<p>Produced by: Meyer Bohn, Joshua McDanel, and Bradley Miller January (2019)<\/p>\n<p>Created with the gSSURGO mapping toolset for ArcGIS for Desktop 10.6. Available for download at:&nbsp;<br \/>\n<a href=\"https:\/\/web.archive.org\/web\/20240729034029\/https:\/\/www.nrcs.usda.gov\/wps\/portal\/nrcs\/detail\/soils\/survey\/geo\/?cid=nrcs142p2_053628\">https:\/\/www.nrcs.usda.gov\/wps\/portal\/nrcs\/detail\/soils\/survey\/geo\/?cid=nrcs142p2_053628<\/a>&nbsp;<\/p>\n<p>Raster Format: 10-m resolution GeoTIFF, 32-bit floating point<br \/>\nProjection: NAD83 UTM Zone 15N<br \/>\nExtent \u2013 West: -96.801571 East: -90.007463 North: 43.644364 South: 40.302683<\/p>\n<p>Soil Survey Staff. 2018. Natural Resources Conservation Service. United States Department of Agriculture. Gridded Soil Survey Geographic (gSSURGO) Database for Iowa. Accessed 27 Oct 2018.<\/p>\n<p>Use limitations: See \u201cSources of Apparent Error on Existing Soil Maps\u201d. Soil Survey Staff. 2018. Soil Survey Manual \u2013 Ch. 4: Soil Mapping Concepts. Natural Resources Conservation Service. United States Department of Agriculture. Available at:&nbsp;<br \/>\n<a href=\"https:\/\/web.archive.org\/web\/20240729034029\/https:\/\/www.nrcs.usda.gov\/wps\/portal\/nrcs\/detail\/soils\/ref\/?cid=nrcs142p2_054254#quality\">https:\/\/www.nrcs.usda.gov\/wps\/portal\/nrcs\/detail\/soils\/ref\/?cid=nrcs142p2_054254#quality<\/a>&nbsp;<\/p>\n<p>Scale Range: Not intended for use at scales larger than an order 2 Survey (1:12,000 to 1:31,680).<\/p>\n\n\t<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":3216,"featured_media":10604,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"ngg_post_thumbnail":0,"footnotes":""},"categories":[309],"tags":[202,170,60,310,121,124,208],"class_list":["post-11640","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-soil-properties-gis-data","tag-gis-downloads","tag-gssurgo","tag-iowa","tag-maps","tag-soil-maps","tag-soil-survey","tag-water-table"],"acf":[],"featured_image_urls_v2":{"full":["https:\/\/www.agron.iastate.edu\/glsi\/files\/2025\/03\/Soil-Sand-Content.gif",1920,1473,false],"thumbnail":["https:\/\/www.agron.iastate.edu\/glsi\/files\/2025\/03\/Soil-Sand-Content-150x150.gif",150,150,true],"medium":["https:\/\/www.agron.iastate.edu\/glsi\/files\/2025\/03\/Soil-Sand-Content-300x230.gif",300,230,true],"medium_large":["https:\/\/www.agron.iastate.edu\/glsi\/files\/2025\/03\/Soil-Sand-Content-768x589.gif",768,589,true],"large":["https:\/\/www.agron.iastate.edu\/glsi\/files\/2025\/03\/Soil-Sand-Content-1024x786.gif",1024,786,true],"1536x1536":["https:\/\/www.agron.iastate.edu\/glsi\/files\/2025\/03\/Soil-Sand-Content-1536x1178.gif",1536,1178,true],"2048x2048":["https:\/\/www.agron.iastate.edu\/glsi\/files\/2025\/03\/Soil-Sand-Content.gif",1920,1473,false]},"post_excerpt_stackable_v2":"<p>Sand content refers to the percentage by weight of mineral soil particles between 0.05 mm and 2 mm in diameter, measured within the &lt;2 mm soil fraction. This classification helps describe soil texture and physical structure. It\u2019s one of the three primary soil separates, alongside silt and clay. Applied Relevance Sand influences water infiltration, drainage, and aeration. Soils high in sand generally have low water-holding capacity and lower nutrient retention. Sand content is essential for interpreting hydrologic behavior, assessing suitability for construction, and determining soil texture class for agricultural use. Available Depths Mapped data layers are available for the following&hellip;<\/p>\n","category_list_v2":"<a href=\"https:\/\/www.agron.iastate.edu\/glsi\/category\/gis-data\/soil-properties-gis-data\/\" rel=\"category tag\">Soil Properties GIS Data<\/a>","author_info_v2":{"name":"Bradley Miller","url":"https:\/\/www.agron.iastate.edu\/glsi\/author\/millerba\/"},"comments_num_v2":"0 comments","yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Iowa Sand Content GIS Data - Geospatial Laboratory for Soil Informatics<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.agron.iastate.edu\/glsi\/gis-data\/soil-properties-gis-data\/iowa-sand-content-gis-data\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Iowa Sand Content GIS Data - 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