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NEFSC Aerial Survey - Experimental 2002
Entry ID: seamap107

Abstract: The survey was conducted on the NOAA DeHavilland Twin Otter DHC-6,
Series 300 aircraft from 19 July to 16 August 2002. The flights were based out
of Otis Airbase from 19 July to 02 August 2002, and based out of Hancock
County/Bar Harbor Airport in Trenton, Maine from 02 August to 16 August 2002.
The southern border of the study area was south of Long Island, NY, the
northern border was in the Bay of Fundy north of St. John, New Brunswick, the
western border was the US coast line, and the eastern border was about 64.5�W
(west of Halifax, Nova Scotia).

Purpose: The primary objective of this survey is to determine the feasibility
of the Circle-back method that estimates abundance of cetaceans and turtles
which includes an estimate of g(0), the probability of detecting a group on the
track line. First, the practice issues of conducting the survey in the field
will be assessed, then the analytical issues will be investigated after the
data are collected. ... View entire text
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Geographic Coverage
Spatial coordinates   
  N: 44.63   S: 40.01   E: -64.92   W: -72.2

Data Set Citation
Dataset Originator/Creator: NOAA Northeast Fisheries Science Center (NEFSC)
Dataset Title: NEFSC Aerial Survey - Experimental 2002
Dataset Series Name: OBIS-SEAMAP
Dataset Release Date: 2006-03-08 11:43:55-05
Dataset Release Place:
Dataset Publisher: OBIS-SEAMAP
Data Presentation Form: vector digital data
Online Resource:
Parent DIF
This description is a member of a collection. The collection is described in

Temporal Coverage
Start Date: 2002-07-20
Stop Date: 2002-08-10
Data Resolution
Latitude Resolution: 0.000167 Decimal degrees
Longitude Resolution: 0.000167 Decimal degrees
Horizontal Resolution Range: 1 meter - < 30 meters
Aircraft Ancillary Description
Access Constraints ACCESS CONSTRAINTS: Open public unless otherwise noted.

DISTRIBUTION LIABILITY: Not to hold OBIS-SEAMAP liable for errors in the data.
While we have made every effort to ensure the quality of the database, we
cannot guarantee the accuracy of these datasets. Also please refer to Use
Use Constraints Not to use data contained in OBIS-SEAMAP in any publication, product, or
commercial application without prior written consent of the original data
provider. To cite both the data provider and OBIS-SEAMAP appropriately after
approval of use is obtained. Also please refer to Distribution Liability.
Data Set Progress
Data Center
OBIS Spatial Ecological Analysis of Megavertebrate Populations Supplemental Info
Data Center URL:

Data Center Personnel
Phone: 919-613-8062
Email: phalpin at
Contact Address:
Duke University
Box 90328
City: Durham
Province or State: NC
Postal Code: 27708
Country: USA
Distribution Format: Shapefile
Phone: 919-613-8021
Fax: 919-684-8741
Email: efujioka at
Contact Address:
Box 90328
City: Durham
Province or State: NC
Postal Code: 27708
Country: USA
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Creation and Review Dates
DIF Creation Date: 2007-01-22
Last DIF Revision Date: 2017-08-24