This dataset contains the approximate location of 59 wetlands that were monitored as part of the U.S. Geological Survey (USGS) Amphibian Research and Monitoring Initiative (ARMI). Note, these were preliminary points used for locating the wetlands in the field and they may not fall directly within a wetlands boundary. The later surveying of pond boundaries provides more accurate locations. These point locations were collected with a Garmin GPSmap62 unit. The mention of firm, product, or trade names is done so for informative purposes only and does not constitute and recommendation or endorsement by the federal government.

This dataset contains records of water level and water temperature measurements from select wetlands at Saint Marks National Wildlife Refuge. These data were collected as part of the U.S. Geological Survey (USGS) Amphibian Research and Monitoring Initiative (ARMI). Beginning in July 2010, hydrologic monitoring equipment was installed in 24 wetlands. Instrumentation included a staff gage and a non-vented continuous logging pressure transducer (Onset Comp U20) that logged data at 1-hour intervals. An additional 35 sites were instrumented in January 2014. Data for individual wetlands covers different time periods based on different phases of studies and sensor battery failures. In shallow, ephemeral wetlands these instruments were installed in the deepest point in the basin. In permanent wetlands, instruments were positioned as deeply as possible in proximity to vegetative indicators of permanent water (e.g. Nuphar, Cephalanthus). Additionally, an Onset Comp U20 sensor was deployed sub-aerially to correct water levels for atmospheric pressure. Sites were visited approximately quarterly to read staff gages and download data from transducers. Staff gages were read to the nearest hundredth of a foot. Data were adjusted based on the periodic staff gage readings and barometric pressure readings using features in the software HOBOware (Onset Corporation). The mention of firm, product, or trade names is done so for informative purposes only and does not constitute and recommendation or endorsement by the federal government.

This USGS Data Release represents geospatial and tabular data for a study investigating linkages between local terrain and wetland hydroperiod and was supported by the U.S. Geological Survey (USGS) Amphibian Research and Monitoring Initiative (ARMI). This dataset contains wetland water level data from Saint Marks National Wildlife Refuge (SMNWR). Data include records of water level and water temperature measurements from select wetlands beginning in July 2010 and ending in 2019. Not all wetlands span this entire period as different phases of studies resulted in different time periods of data collection. Instrumentation included a staff gage and a non-vented continuous logging pressure transducer that logged data at 1-hour intervals. The dataset consists of 4 separate items: 1. water level monitoring site Locations (tabular data) 2. wetland perimeters (GIS vector data) 3. water level and water temperature data for 59 select wetlands (tabular data) 4. revision history text file that describes the changes from the original release to version 2.0. In Version 2.0 of this data release, data collected since the initial publication (2016) are being added to the data release to provide a longer record. Additionally, wetland perimeters (polygons) that were not available during the first release are added to version 2.0.

This USGS Data Release represents geospatial and tabular data for a study investigating linkages between local terrain and wetland hydroperiod and was supported by the U.S. Geological Survey (USGS) Amphibian Research and Monitoring Initiative (ARMI). This dataset contains wetland water level data from Saint Marks National Wildlife Refuge (SMNWR). Data include records of water level and water temperature measurements from select wetlands beginning in July 2010 and ending in 2019. Not all wetlands span this entire period as different phases of studies resulted in different time periods of data collection. Instrumentation included a staff gage and a non-vented continuous logging pressure transducer that logged data at 1-hour intervals. The dataset consists of 4 separate items: 1. water level monitoring site Locations (tabular data) 2. wetland perimeters (GIS vector data) 3. water level and water temperature data for 59 select wetlands (tabular data) 4. revision history text file that describes the changes from the original release to version 2.0. In Version 2.0 of this data release, data collected since the initial publication (2016) are being added to the data release to provide a longer record. Additionally, wetland perimeters (polygons) that were not available during the first release are added to version 2.0.

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.

This USGS Data Release represents geospatial and tabular data for a study investigating linkages between local terrain and wetland hydroperiod. The data release was produced in compliance with the new 'open data' requirements as way to make the scientific products associated with USGS research efforts and publications available to the public. The dataset consists of 3 separate items: 1. water level monitoring site Locations (tabular data) 2. surveyed wetland perimeters (GIS vector data) 3. water level and water temperature data for 58 select wetlands (tabular data)

This USGS Data Release represents geospatial and tabular data for a study investigating linkages between local terrain and wetland hydroperiod. The data release was produced in compliance with the new 'open data' requirements as way to make the scientific products associated with USGS research efforts and publications available to the public. The dataset consists of 3 separate items: 1. water level monitoring site Locations (tabular data) 2. surveyed wetland perimeters (GIS vector data) 3. water level and water temperature data for 58 select wetlands (tabular data)

Data represent physical (water quality, water nutrient analysis) and biological (fish, macroinvertebrate, and vegetation community) collections from the Shiawassee National Wildlife Refuge in Saginaw, MI, USA (specifically, historical management unit "Pool 1A" and the North and South management units of the Maankiki Marsh Complex.) The North and South management units of the Maankiki Marsh Complex were reconnected to the Shiawassee River in 2018, whereas Pool 1A represents a historically reconnected wetland. Additional sites within the Shiawassee River and Spaulding Drain (east of Pool 1A) were also sampled to represent parameters collected from the parent water system. All data were collected in 2019.

Data represent physical (water quality, water nutrient analysis) and biological (fish, macroinvertebrate, and vegetation community) collections from the Shiawassee National Wildlife Refuge in Saginaw, MI, USA (specifically, historical management unit "Pool 1A" and the North and South management units of the Maankiki Marsh Complex.) The North and South management units of the Maankiki Marsh Complex were reconnected to the Shiawassee River in 2018, whereas Pool 1A represents a historically reconnected wetland. Additional sites within the Shiawassee River and Spaulding Drain (east of Pool 1A) were also sampled to represent parameters collected from the parent water system. All data were collected in 2019.

The objective of this investigation was to respond to a request for regional assistance for a comprehensive delineation of wetland habitats 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 floodplain of Blow-Me-Down-Creek upstream and within the immediate area surrounding Blow-Me-Down-Dam on Saint Gaudens National Historic Site (SAGA) lands. This work utilized the U.S Army Corps of Engineers (USACE) Interim Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Northeast and Northcentral Region (January 2012) as the primary methodology for making wetland determinations in the field. A total of 3 palustrine wetlands encompassing 7.23 acres of land were identified and delineated from 22 -25 September 2014 within the study area (Fig. 1). Observed wetland habitats were primarily a combination of palustrine, emergent, persistent, habitats (PEM1) and scrub-shrub (PSS) habitats that exhibited extensive soil saturation at the time of the investigation. 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.