[Personnel: Last_Name='WAITE', First_Name='JANICE']
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NMML Harbor Porpoise Aerial Survey, Cook Inlet, 1991
Entry ID:
seamap131
Summary
Abstract:
On 1 and 2 August 1991, as part of a larger study, Alaska harbor
porpoise (Phocoena phocoena) abundance was investigated during an aerial survey throughout the coastal waters of Cook Inlet. A Twin Otter was used to fly a single sawtooth trackline across Cook Inlet at an altitude of 152.2 m (500ft) and at an airspeed of 100 kn. Line-transect methodology was used, and only those observations made during optimal conditions were analyzed. Density of harbor porpoises was calculated using line transect estimates based on perpendicular distances of sightings to the cruise track of the airplane. On average, porpoise group size and density for Cook Inlet was 1.33 (SE = .33) and .54 groups/100 km^2 (SE=.31). Purpose: Although harbor porpoises, Phocoena phocoena, are known to occur throughout Alaska waters (Fiscus et al. 1976; Leatherwood and Reeves 1978; Lawry et al. 1982; Leatherwood et al. 1983), few estimates of abundance exist. In 1991, the National Marine Mammal Laboratory initiated a 3-yr study on Alaska harbor porpoises. The objectives of this program were to: 1) Obtain minimum ... 
Related URL
Data Set Citation
Dataset Originator/Creator:
National Marine Mammal Laboratory
Dataset Title:
NMML Harbor Porpoise Aerial Survey, Cook Inlet, 1991
Dataset Series Name:
OBIS-SEAMAP
Dataset Release Date:
2004-08-09 16:45:24.45155-04
Dataset Release Place:
http://seamap.env.duke.edu/
Dataset Publisher:
OBIS-SEAMAP
Data Presentation Form:
vector digital data
Online Resource:
http://nmml.afsc.noaa.gov/
Parent DIF
Temporal Coverage
Start Date:
1991-08-01
Stop Date:
1991-08-02
Data Resolution
Latitude Resolution:
0.000167 Decimal degrees
Longitude Resolution: 0.000167 Decimal degrees Horizontal Resolution Range: 1 meter - < 30 meters Science Keywords
ISO Topic Category
Platform
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 Constraints.
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. Ancillary Keywords
Data Set Progress
COMPLETE
Data Center
Distribution
Distribution Format:
Shapefile
Personnel
Role:
TECHNICAL CONTACT
Phone:
(818) 393-7165
Email:
podaac at podaac.jpl.nasa.gov
Contact Address:
Jet Propulsion Laboratory
M/S 300-320
4800 Oak Grove Drive
City:
Pasadena
Province or State:
CA
Postal Code:
91109-8099
Country:
USA
Publications/References
Yueh,S.,Tang, W.,Fore,A.,Freedman,A.,Neumann,G.,Chaubell,J.,Hayashi,A (2012).SIMULTANEOUS SALINITY AND WIND RETRIEVAL USING THE CAP ALGORITHM FOR AQUARIUS. http://www.igarss2012.org/Papers/viewpapers.asp?papernum=1596
Extended Metadata Properties
(Click to view more)
Creation and Review Dates
DIF Creation Date:
2013-03-19
Last DIF Revision Date:
2013-05-03
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