HWP_metadata.xml
eng; USA
utf8
dataset
Emelia Marshall
Dauphin Island Sea Lab
Heck Lab Project Manager
1 251-320-8513
Dauphin Island
AL
36528
USA
emarshall@disl.org
pointOfContact
2022-07-12T15:29:22+00:00
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Helen Wood Park Restoration Project
2021-09-28
creation
As part of The Nature Conservancy’s NFWF and GEBF funded “Helen Wood Park/Alba Beach Restoration and Shoreline Protection Project”, the Dauphin Island Sea Lab (DISL) was contracted to perform baseline monitoring surveys to document species composition of coastal wetland plants likely to be impacted by restoration activities, as well as site elevation, shoreline position, and average water level. The goal of Helen Wood Park Restoration project is to protect the shoreline from erosion, provide intertidal habitat, protect and enhance marsh habitat, and restore ecosystem function that has been lost.
This Fall 2021 dataset consists of species composition and percent cover at predetermined marsh points, and species composition and spatial extent of nearshore SAV beds. Site characteristics such as shoreline position, site elevation, and water level were also documented. These surveys provide baseline data to compare future conditions at the site.
The purpose of this data is to collect baseline conditions along the shoreline of Helen Wood Park, which serves as a potential candidate for living shorelines in the future.
completed
Emelia Marshall
The Dauphin Island Sea Lab
Heck Lab Project Manager
1 251-320-8513
Dauphin Island
AL
36528
USA
emarshall@disl.org
pointOfContact
Living Shorelines
Marsh restoration
Submerged Aquatic Vegetation
Habitat restoration
Baseline monitoring
theme
Mobile Bay
Helen Wood Park
place
eng;USA
environment
Ground condition
2021-09-28
2021-10-05
*Metadata sheet available in attached datasheets
The following data parameters were used in the "2021_MarshSurvey" datasheet. A description of the parameter along with the unit of measurement are included:
Date describes when sample was collected from the field (MM/DD/YYYY). Marsh point ID is the unique sample ID labelled as Transect # - Point #. Latitude describes the latitudinal coordinate of the marsh point ID point written in decimal degrees (dd.ddddd). Longitude describes the longitudinal coordinate of the marsh point ID point written in decimal degrees (dd.ddddd). Photo indicates if a drone image was taken at this sample. Species describes the vegetation species present in the quadrat. Percent Cover describes the percent cover of the species inside the quadrat written as a percentage. NCVS stands for the North Carolina Vegetation Survey and describes categories of percent cover. The category values are 1 = solitary/few/small, 2 = 0.1 - 1%, 3 = 1 - 2%, 4 = 2 - 5%, 5 = 5 - 10%, 6 = 10 - 25%, 7 = 25 - 50%, 8 = 50 - 75%, 9 = 75 - 95%. Number of Shoots describes the shoot count within 2 quadrants of the 1m^2 quadrat. Survey Team describes who collected the data. Camera describes which camera was used to take the image. Notes describes any additional information that may be pertinent to the sample with blank cells indicating no notes recorded.
The following data parameters were used in the "SpeciesCode" datasheet. A description of the parameter along with the unit of measurement are included:
Scientific Name describes the vegetation species. Code describes the unique 2 letter code for the vegetation. Common Name describes the species’ common name. Native/Non describes the species’ native vs non-native status in coastal Alabama.
The following data parameters were used in the "NCVS" datasheet. A description of the parameter along with the unit of measurement are included:
NCVS Category stands for North Carolina Vegetation Survey categories and is used to estimate the percent cover of biomass in the 1m^2 quadrat. The category values are 1 = solitary/few/small, 2 = 0.1 - 1%, 3 = 1 - 2%, 4 = 2 - 5%, 5 = 5 - 10%, 6 = 10 - 25%, 7 = 25 - 50%, 8 = 50 - 75%, 9 = 75 - 95%. Cover range describes the species’ actual percent cover in the 1m^2 quadrat.
The following data parameters were used in the "Baseline_QuadPts" datasheet. A description of the parameter along with the unit of measurement are included:
Marsh point ID is the unique sample ID labelled as Transect # - Point #. Latitude describes the latitudinal coordinate of the marsh point ID point written in decimal degrees (dd.ddddd). Longitude describes the longitudinal coordinate of the marsh point ID point written in decimal degrees (dd.ddddd).
The following data parameters were used in the "2021_SAVSurvey" datasheet. A description of the parameter along with the unit of measurement are included:
Date describes when sample was collected from the field (MM/DD/YYYY). Surveyor initials indicate the staff who collected the data. Latitude describes the latitudinal coordinate of the marsh point ID point written in decimal degrees (dd.ddddd). Longitude describes the longitudinal coordinate of the marsh point ID point written in decimal degrees (dd.ddddd). TransDist describes the distance along the transect at which the SAV was documented or at which the transect starts/stops, and is measured in meters. Point type describes the type of sample collected at that point. Values include start = beginning of transect, end = end of transect, SAV start = beginning of an SAV bed, SAV end = end of an SAV bed, SAV patch = few/solitary shoots of seagrass. Species describes the scientific name of the SAV. Notes describes any additional information that may be pertinent to the sample. Blank cells indicate no notes recorded.
Marsh survey points were photographed with an arial drone flown at an altitude of 10m. Each image was overlaid with a 1 m2 grid to represent the 1m^2 quadrat used in the marsh surveys.
The following data parameters were used in the "HWP_waterlevel_20220706" datasheet. A description of the parameter along with the unit of measurement are included:
Date describes when sample was collected from the field (MM/DD/YYYY). Time describes the time the measurement was taken in (military time). Abs Pres describes the absolute pressure recorded by the HOBO water logger. Pressure Barometric describes the atmospheric pressure recorded by the Middle Bay Lighthouse ARCOS station. HWP_water_level describes the water level calculated by the HOBOware software by converting the Absolute pressure and Atmospheric pressure to water level.
The following data parameters were used in the "Surveyor_elevations" datasheet. A description of the parameter along with the unit of measurement are included:
Northing (Y) describes the latitude projected in the Alabama State Plane Coordinate System West Zone (102) NAD 83 (2011). Easting (X) describes the longitude projected in the Alabama State Plane Coordinate System West Zone (102) NAD 83 (2011). Elev (Z) describes the ground elevation at the point in US Feet. Description lists the ground survey (GS) point name or benchmark (BM) name where the elevation was taken. A topographic survey map prepared by Rowe Engineering & Surveying consulting is attached.
The following data parameters were used in the "Surveyor_elevations" datasheet. A description of the parameter along with the unit of measurement are included:
Point describes the unique ID for the sample point. Northing (Y) describes the latitude coordinate in AL West 0102 Coordinate System in US survey feet NAD 83 (2011). Easting (X) describes the longitude coordinate in reference to the Alabama State Plane Coordinate System West Zone (102) NAD 83 (2011). Elevation describes the ground elevation at the point in US Feet.|During the 2021 baseline monitoring survey, seven marsh transects were placed along the shoreline and separated by approximately 100 m. Transects ran perpendicular to the shore and extended west until intersecting SR-163 or upland pine forest. Transect length ranged from 30 to 180 m and permanent 1m2 quadrats were established along the transects to document vegetation zonation patterns. Each transect contained between 3-5 marsh survey locations for a total of 26 points. At each sampling location, all plant species within a 1m2 fixed plot were identified and percent canopy cover recorded using North Carolina Vegetation Survey (NCVS) categories. NCVS is a cover abundance scale designed to be a flexible, multipurpose method for recording vegetation composition and structure. If a species was unknown, a sample was collected and brought back to the lab for further identification.
Submerged aquatic vegetation (SAV) surveys were conducted along 50 m transects that extended offshore from the marsh transects. Teams walked the transects and documented the presence of SAV within a 1 m swath alongside each transect.
An unmanned aerial vehicle (DJI Phantom 3 Professional), flown by a licensed small Unmanned Aerial System pilot, took a picture at each marsh point at 10 m altitude. Ground Sample Distance (GSD) for each image was measured to determine distances in the images for each pixel. A grid with 1 m2 squares based on GSD values was overlain onto each image. All wetland species present in the middle 1 m2 square were identified in post processing.
A HOBO U20 Water Level Logger (U20-001-0x-Ti) was attached firmly to a stable fixed structure below MLW for a full lunar cycle to record average water levels at the site. The logger recorded absolute pressure at 10-minute intervals for 33 days. A reference water level was recorded by the NOAA tides and currents station at Dog River Bridge, AL and reference barometric pressure data was recorded by Alabama’s Real-Time Coastal Observing System (ARCOS) meteorological sensor at the Middle Bay Lighthouse. Water level at the site was calculated by the HOBOware software using the recorded absolute pressure, reference barometric pressure, and a reference water level.
A Topography survey was conducted by Rowe Engineering and Surveying Consulting.
TNC personnel walked the shoreline at the vegetation edge with a Trimble TSC3 handheld controller coupled with a SPS986 GNSS smart antenna, connected via WIFI hotpot to the ALDOT CORS network. Position was recorded with 10 cm horizontal and vertical precision and taken automatically every 2 feet using the continuous topo setting in the Trimble Access (2017) software as the interface. GPS coordinates are presented in the AL West 0102 Coordinate System in US survey feet. |The following instruments were used during the marsh habitat surveys, SAV surveys, shoreline position data, and water level data:
Garmin 78sc GPR, DJI Phantom 3 Professional drone, HOBO U20 Water Level Logger (U20-001-0x-Ti), 1m2 gridded quadrat, Trimble TSC3 handheld controller coupled with a SPS986 GNSS smart antenna.|||
The Dauphin Island Sea Lab
1 251-320-8513
Dauphin Island
AL
36528
USA
emarshall@disl.org
https://www.disl.edu/
distributor
1
https://data.disl.edu/
https
This ISO metadata record was created using the 'Save to File' (no form validation) function of the GRIIDC ISO 19115-2 Metadata Editor on 2022-06-29T20:01:08+00:00
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This ISO metadata record was created using the 'Save to File' (no form validation) function of the GRIIDC ISO 19115-2 Metadata Editor on 2022-06-30T20:29:09+00:00
This ISO metadata record was created using the 'Save to File' (no form validation) function of the GRIIDC ISO 19115-2 Metadata Editor on 2022-07-05T20:58:09+00:00
This ISO metadata record was created using the 'Save to File' (no form validation) function of the GRIIDC ISO 19115-2 Metadata Editor on 2022-07-07T21:08:57+00:00
This ISO metadata record was created using the 'Check and Save to File' (with form validation) function of the GRIIDC ISO 19115-2 Metadata Editor on 2022-07-12T15:55:12+00:00