ALPO Summit Wetlands Geodatabase
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The objective of this investigation was to respond to a request for regional assistance for a comprehensive delineation of wetlands and associated waterways subject to jurisdiction under Section 404 of the Clean Water Act and all wetlands subject to National Park Service (NPS) procedures for implementing Director’s Order #77–1: Wetland Protection within the summit area of Allegheny Portage Railroad National Historic Site (ALPO). This work utilized the U.S Army Corps of Engineers (USACE) Interim Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Eastern Mountains and Piedmont Region as the primary methodology for making wetland determinations in the field. A total of 7 palustrine wetlands encompassing 4.43 acres of land were identified and delineated from 17 -20 September 2012 within the ALPO summit area (see associated geodatabase). The majority of the wetland habitats observed within the ALPO study area were palustrine, emergent, persistent, habitats (PEM1) with varying degrees of groundwater influence. None of the observed wetland ecosystems meet the PA Title 25, Chapter 105 Exceptional Value (EV) wetland designation standard. However, all of the identified and mapped palustrine wetland systems meet both the U.S. Army Corps of Engineers criteria and the Cowardin et al. (1979) definitions of wetland habitat. No new riverine wetland systems were identified and mapped over the course of this investigation; however, five seeps and their associated drainages were identified in close proximity to one of the proposed PADEP borehole sites.
ALPO Summit Wetlands Geodatabase
공공데이터포털
The objective of this investigation was to respond to a request for regional assistance for a comprehensive delineation of wetlands and associated waterways subject to jurisdiction under Section 404 of the Clean Water Act and all wetlands subject to National Park Service (NPS) procedures for implementing Director’s Order #77–1: Wetland Protection within the summit area of Allegheny Portage Railroad National Historic Site (ALPO). This work utilized the U.S Army Corps of Engineers (USACE) Interim Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Eastern Mountains and Piedmont Region as the primary methodology for making wetland determinations in the field. A total of 7 palustrine wetlands encompassing 4.43 acres of land were identified and delineated from 17 -20 September 2012 within the ALPO summit area (see associated geodatabase). The majority of the wetland habitats observed within the ALPO study area were palustrine, emergent, persistent, habitats (PEM1) with varying degrees of groundwater influence. None of the observed wetland ecosystems meet the PA Title 25, Chapter 105 Exceptional Value (EV) wetland designation standard. However, all of the identified and mapped palustrine wetland systems meet both the U.S. Army Corps of Engineers criteria and the Cowardin et al. (1979) definitions of wetland habitat. No new riverine wetland systems were identified and mapped over the course of this investigation; however, five seeps and their associated drainages were identified in close proximity to one of the proposed PADEP borehole sites.
Hopewell Furnace National Historic Site 2014-2015 Wetland Study
공공데이터포털
The objective of this investigation was to delineate and map all wetlands and associated waterways subject to jurisdiction under Section 404 of the Clean Water Act and all wetlands subject to National Park Service (NPS) procedures for implementing Director’s Order #77–1: Wetland Protection Hopewell Furnace National Historic Site (HOFU). This investigation adhered to the U.S Army Corps of Engineers (USACE) Interim Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Eastern Mountains and Piedmont as the primary methodology for making wetland determinations in the field. Under National Park Service D.O. #77.1 guidelines the USACE methodology is appropriate for wetland features possessing vegetation and soils. This inventory only provides data for land-based (palustrine) wetland features, no attempts were made to delineate waterway (riverine systems). A total of 37 palustrine wetlands encompassing 139.63 acres (56.50 ha) of land were identified and delineated from August-October 2014 and October 2015. All of the identified and mapped palustrine wetland systems meet both the U.S. Army Corps of Engineers criteria and the Cowardin et al. (1979) definitions. No new riverine systems were identified and mapped over the course of this investigation within the park boundary. The majority of the larger wetland systems were located in areas previously identified by park staff and USGS/NPS vegetation mapping (i.e. French Creek floodplain), however, a significant number of previously smaller unmapped wetland areas were identified over the course of this investigation including the identification and verification of several vernal pool habitats. The improved boundary information and field delineated wetland mapping will significantly improve the park’s ability to effectively manage, protect, and monitor these unique resources.
Hopewell Furnace National Historic Site 2014-2015 Wetland Study
공공데이터포털
The objective of this investigation was to delineate and map all wetlands and associated waterways subject to jurisdiction under Section 404 of the Clean Water Act and all wetlands subject to National Park Service (NPS) procedures for implementing Director’s Order #77–1: Wetland Protection Hopewell Furnace National Historic Site (HOFU). This investigation adhered to the U.S Army Corps of Engineers (USACE) Interim Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Eastern Mountains and Piedmont as the primary methodology for making wetland determinations in the field. Under National Park Service D.O. #77.1 guidelines the USACE methodology is appropriate for wetland features possessing vegetation and soils. This inventory only provides data for land-based (palustrine) wetland features, no attempts were made to delineate waterway (riverine systems). A total of 37 palustrine wetlands encompassing 139.63 acres (56.50 ha) of land were identified and delineated from August-October 2014 and October 2015. All of the identified and mapped palustrine wetland systems meet both the U.S. Army Corps of Engineers criteria and the Cowardin et al. (1979) definitions. No new riverine systems were identified and mapped over the course of this investigation within the park boundary. The majority of the larger wetland systems were located in areas previously identified by park staff and USGS/NPS vegetation mapping (i.e. French Creek floodplain), however, a significant number of previously smaller unmapped wetland areas were identified over the course of this investigation including the identification and verification of several vernal pool habitats. The improved boundary information and field delineated wetland mapping will significantly improve the park’s ability to effectively manage, protect, and monitor these unique resources.
The purpose of this project was to map the wetlands across New South Wales. Wetlands were identified using a combination of classification of spectral classes of Landsat MSS and TM imagery and ancillary wetland information to create information classes of broad wetland groups (floodplain wetlands, freshwater lakes, saline lakes, reservoirs, estuarine wetlands and coastal lagoons and lakes). The data will then be used to assess the wetland resource in each catchment. For more details refer to: Kingsford, R., Brandis, K., Thomas, R., Crighton, P., Knowles, E. and Gale, E., 2004. Classifying landform at broad spatial scales: the distribution and conservation of wetlands in New South Wales, Australia. Marine and Freshwater Research 55, 17-31. http://dx.doi.org/10.1071/MF03075
Wetland perimeters for monitored wetlands at Saint Marks National Wildlife Refuge: July 2010 - May 2019 (version. 2.0, August 2022)
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This dataset contains boundary polygons from 59 wetlands, that were monitored as part of the U.S. Geological Survey (USGS) Amphibian Research and Monitoring Initiative (ARMI) from Saint Marks National Wildlife Refuge (SMNWR). These sites covered a range of sizes, shapes, topographic and vegetative characteristics that were deemed to be representative of wetlands within the study area. Ground-based surveys of wetland perimeters were made using a Trimble R8 Real Time Kinematic Global Positioning System (RTK-GPS). Surveys generally followed the lowest extent of saw palmetto (Serenoa repens), which is a reliable indicator of the upper limits (elevation) of sustained inundation. In instances where palmetto was absent, margins were identified based on the lower limits of gallberry (Ilex sp.) and/or the upper extent of titi (Cyrilla/Cliftonia). These species occupied similar hydrologic and elevation zones as saw palmetto and, therefore, considered to also be reliable indicators of a wetland’s edge. GPS points were collected along this vegetative margin to represent the size and general shape of each wetland. In cases where dense vegetation prevented surveying the complete margin, we used elevation contours to connect distant points when digitizing perimeters. For a subset of wetlands that were not surveyed in the field on screen digitizing was used to construct the boundaries. When using this latter approach multiple layers were used to help identify the boundary including the national wetlands inventory, aerial imagery, and a lidar derived digital elevation model. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.