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A geodatabase and digital characterization of wetlands mapped in the Willamette Valley with particular reference to prediction of their hydrogeomorphic (HGM) class

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  • To achieve a goal of “no net loss” of wetland functions as well as acreage, it is important to know which functions wetlands in a specific region or watershed may individually provide, at what level. Although methods exist for assessing functions of Oregon wetlands (ORWAP; Adamus et al. 2009), site visits and hours of data collection are required to apply these to any wetland. Moreover, property access restrictions prohibit their use on many wetlands. Thus, when there is a comprehensive objective to assess all mapped wetlands in a region or watershed, time and manpower constraints require that spatial data be processed automatically using GIS, even though assessments of functions using such an approach have much lower levels of certainty. The primary object of this project was to define criteria that would allow only the use of existing spatial databases (and only those with comprehensive coverage of the ecoregion) to identify the HGM class of mapped Willamette Ecoregion wetlands, and then apply those criteria automatically and systematically to every mapped wetland in the ecoregion, resulting in an HGM label for each mapped wetland. An ancillary goal was the creation of a database that describes over 200 attributes of each mapped wetland in the Willamette ecoregion, i.e., a regional wetland “profile.”
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  • Adamus, Paul; Christy, John; Jones, Aaron; McCune, Myrica; Bauer, John (2010): A geodatabase and digital characterization of wetlands mapped in the Willamette Valley with particular reference to prediction of their hydrogeomorphic (HGM) class. Oregon State University. Dataset. https://doi.org/10.7267/N9CC0XMK
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  • description.provenance : Made available in DSpace on 2010-09-29T17:55:55Z (GMT). No. of bitstreams: 4HGM_spatial_20100907.zip: 41130742 bytes, checksum: 6fadbaff9507cc1af60440f03645f7da (MD5)Willamette_wetlands_geodatabase_Sept2010.zip: 7706469 bytes, checksum: 253f354c5c0908154d08e0acfb62e7ab (MD5)Data_dictionary_Willamette_wetlands_geodatabase.xls: 77824 bytes, checksum: 02c4d5c4f361303b376cd21a5ced99b1 (MD5)Adamus_EPA_HGM_GIS ReportFinal_Aug2010.pdf: 286878 bytes, checksum: 9c0a84fa43e5574a14b0d78db17fcda4 (MD5)
  • description.provenance : Approved for entry into archive by Kuuipo Walsh(kuuipo.walsh@oregonstate.edu) on 2010-09-29T17:55:55Z (GMT) No. of bitstreams: 4HGM_spatial_20100907.zip: 41130742 bytes, checksum: 6fadbaff9507cc1af60440f03645f7da (MD5)Willamette_wetlands_geodatabase_Sept2010.zip: 7706469 bytes, checksum: 253f354c5c0908154d08e0acfb62e7ab (MD5)Data_dictionary_Willamette_wetlands_geodatabase.xls: 77824 bytes, checksum: 02c4d5c4f361303b376cd21a5ced99b1 (MD5)Adamus_EPA_HGM_GIS ReportFinal_Aug2010.pdf: 286878 bytes, checksum: 9c0a84fa43e5574a14b0d78db17fcda4 (MD5)
  • description.provenance : Submitted by Kuuipo Walsh (kuuipo.walsh@oregonstate.edu) on 2010-09-29T17:55:23ZNo. of bitstreams: 4HGM_spatial_20100907.zip: 41130742 bytes, checksum: 6fadbaff9507cc1af60440f03645f7da (MD5)Willamette_wetlands_geodatabase_Sept2010.zip: 7706469 bytes, checksum: 253f354c5c0908154d08e0acfb62e7ab (MD5)Data_dictionary_Willamette_wetlands_geodatabase.xls: 77824 bytes, checksum: 02c4d5c4f361303b376cd21a5ced99b1 (MD5)Adamus_EPA_HGM_GIS ReportFinal_Aug2010.pdf: 286878 bytes, checksum: 9c0a84fa43e5574a14b0d78db17fcda4 (MD5)
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Thumbnail Title Date Uploaded Visibility Actions
file details Adamus_EPA_HGM_GIS ReportFinal_Aug2010.pdf 10/10/2017 Public
file details Data_dictionary_Willamette_wetlands_geodatabase.xls 10/10/2017 Public
file details Willamette_wetlands_geodatabase_Sept2010.zip 10/10/2017 Public
file details HGM_spatial_20100907.zip 10/10/2017 Public