DWH NRDA Marsh Bird Helicopter Survey Data

Metadata Updated: December 11, 2019

Helicopter surveys were performed throughout coastal Louisiana from August 24 through September 30, 2010. Data collection and analysis was completed by staff from U.S. Army Corps of Engineers Engineering Research and Development Center, the U.S. Fish and Wildlife Service (USFWS), the U.S. Geological Survey, and the Louisiana Department of Wildlife and Fisheries. Helicopters contained three U.S. Army Automated Route Reconnaissance Kits (ARRKs) which included a system box with many components allowing the systems to aggregate a 180-degree view at a range of 30 meters, as well as record altitude, temperature, ground speed, location, time, and the audio stream of visual observations made by on-board biologists and technicians. Voice recordings were made of birds observed within 100 meters of each transect. The methodology used for these surveys was similar to one developed by the USFWS which used ultra low-level surveys to survey secretive marsh birds in a previous oil spill emergency response. The helicopters flew strip transects with start points chosen randomly. Transect lines were spaced two nautical miles apart and flown in parallel. Three types of transects were flown, differentiated by habitat type: 1. Interior Marsh Transects (IMT): total IMT width of 200 meters (buffered centerline by 100 meters on either side). 2. Shoreline Transect (ST): the centerline of the transect was 30 meters inland from the land-water interface, with a total ST width of 130 meters (buffered transect centerline by 30 meters on the water side and 100 meters on the land side). 3. Terrace Transects (TT) (manmade): total TT width of 30 meters, though many were narrower than this (buffered centerline by 15 meters on either side). Later, a fourth habitat type, Barrier Island, was used to define the STs and TTs which were flown on Barrier Islands.This dataset includes a compilation of direct outputs from the ARRK system and survey plot, point, video, transcribed voice-recorded data, and additional fields added during data processing.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date December 11, 2019
Metadata Updated Date December 11, 2019

Metadata Source

Harvested from DOI CKAN Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Created Date December 11, 2019
Metadata Updated Date December 11, 2019
Publisher Fish and Wildlife Service
Unique Identifier FWS_ServCat_103218
Brent Frakes
Maintainer Email
Public Access Level public
Bureau Code 010:18
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID C:\Program Files (x86)\FWS\DataStore\Application\OpenData\FWS_ServCat_v1_1.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Data Quality true
Harvest Object Id 991971f1-a3ff-4027-b03f-4b7d665ec0e2
Harvest Source Id 34ce571b-cb98-4e0b-979f-30f9ecc452c5
Harvest Source Title DOI CKAN Harvest Source
Data First Published 2010-09-30
Homepage URL https://ecos.fws.gov/ServCat/Reference/Profile/103218
Data Last Modified 2010-09-30
Program Code 010:094, 010:028
Related Documents "https://ecos.fws.gov/ServCat/Reference/Profile/103218"
Source Datajson Identifier true
Source Hash 082becb4e40088d94474e09e42fed7c108a36a4c
Source Schema Version 1.1
Temporal 2010-08-27/2010-09-30
Category "Generic Dataset"

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