AMAPPS Southeast Aerial Cruise Fall 2017
NOAA Southeast Fisheries Science Center (SEFSC)
Dataset credit
NOAA Southeast Fisheries Science Center (SEFSC)
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Contacts
Role | Name | Organization | |
Primary contact |
Laura Dias |
NOAA Southeast Fisheries Science Center |
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Secondary contact |
Lance Garrison |
NOAA Southeast Fisheries Science Center |
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Data entry |
Ei Fujioka |
Duke University |
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Citation
Dias, L. and L. Garrison. 2018. AMAPPS Southeast Aerial Cruise Fall 2017. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/1858) on yyyy-mm-dd. Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach. 2009. OBIS-SEAMAP: The world data center for marine mammal, sea bird, and sea turtle distributions. Oceanography. 22(2):104-115.
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Abstract
As part of the AMAPPS program, the Southeast Fisheries Science Center conducted aerial surveys of continental shelf and slope waters (up to the 2,000 m isobath) along the US east coast from New Jersey to South Carolina. The survey was conducted in 2017 between 18 Oct and 20 Nov aboard a NOAA Twin Otter aircraft at an altitude of 600 feet (183 m) and a speed of 110 knots. Survey tracklines were oriented perpendicular to the shoreline and latitudinally spaced 20 km apart. Fine-scale tracklines were surveyed closer to the shores of NJ, DE and VA over renewable energy leasing areas. The survey was designed for analysis using Distance sampling and a two-team (independent observer) approach to correct for perception bias in resulting abundance estimates. Due to staffing issues on 20 Nov the survey was flown with one team with four observers (left and right bubbles, belly and a data recorder).
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Purpose
The goal of the survey was to conduct line-transect surveys using the Distance sampling approach to estimate the abundance and spatial distribution of cetaceans and turtles in waters over the continental shelf and slope (shoreline to 2,000 m isobath) of the eastern USA.
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Supplemental information
Perpendicular distance to the animal is not publicly available. The dataset is accompanied by transect (effort) data which is provided as a separate file. Sightings included were detected on-effort by the forward team only; you may request the full dataset and sightings including opportunistic ones directly to the provider.
Environmental Attribute Codes Beaufort Sea state 0 Calm, mirror like seas 1 Waves <1ft, rippled surface 2 Small wavelets (<2 ft), no white caps 3 Large wavelets (<3ft), scattered white caps 4 Swell 3-4 ft, numerous white caps 5 Swell >5 ft, many white caps, some spray 6 Swell >10 ft, white caps everywhere, spray CloudCover 0 Clear 1 0-25% Cloudy 2 26-50% Cloudy 3 51-75% Cloudy 4 76-100% Cloudy 5 Overcast Glare (Glare intensity) 0 No Impairment 1 Slight Impairment 2 Moderate Impairment 3 Severe Impairment Weather 0 Clear 1 Mist 2 Light Rain 3 Heavy Rain Conditions 0 Poor 1 Fair 2 Moderate 3 Good 4 Excellent Haze 0 No 1 Yes Fog 0 No 1 Yes Sun penetration (Sun pen) 0 Poor 1 Fair 2 Good 3 Excellent Turbidity 0 Poor 1 Fair 2 Good 3 Excellent
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References
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Attributes
Overview
This section explains attributes included in the original dataset.
OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only.
Should you need other attributes described here, you are encouraged to contact the data provider.
Attributes described below represent those in the original dataset provided by the provider.
All attributes are included in the downloadable file (CSV or ESRI File Geodatabase) for "Complete Set of Dataset".
Attributes in dataset
Attribute (table column) | Description |
oid | Unique ID number (generated by OBIS-SEAMAP) |
effortid | Effort ID |
oid_orig | OID assigned by provider |
type | Type (Mammal or Turtle) |
comname | Species common name |
sp_tsn | Taxonomic Serial Number added by OBIS-SEAMAP |
individualcount | Individual count |
latitude | Latitude in decimal degrees |
longitude | Longitude in decimal degrees |
perpendiculardistance | Perpendicular distance to the animal |
eventdate | Date and time of the sighting at local time |
transect | Transect No. |
beaufort | Beaufort sea state |
cloudcover | Cloud cover code |
glare | Glare cover code |
weather | Weather code |
conditions | Overall conditions code |
haze | Haze presence |
fog | Fog presence |
sunpen | Sun penetration code |
turbidity | Turbidity code |
tripid | Trip ID |
platformvlts | Always A (Airplane) |
oneffort | Flag (Y/N) to indicate on effort. |
observationheight | Altitude of aircraft in feet above sea level in feet |
platformspeed | Speed of the platform in knots |
sighttype | Sighting type ("F") |
datasetid | Dataset ID by provider |
datasetname | Dataset name by provider |
eventdatetimezone | The time zone of the observation event (UTC) |
geom | Geometry field added by OBIS-SEAMAP |
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OBIS-SEAMAP ID | 1858 |
Seabirds | 0 |
Marine mammals | 113 |
Sea turtles | 402 |
Rays and sharks | 0 |
Other species | 0 |
Non spatial | 0 |
Non species | 0 |
Total | 515 |
Date, Begin | 2017-10-18 |
Date, End | 2017-11-20 |
Temporal prec. | 111111 |
Latitude | 32.45 - 39.90 |
Longitude | -80.02 - -71.92 |
Coord. prec. | 5 decimal digits |
Platform | Plane |
Data type | Animal sighting |
Effort | YES (ID: 1859) |
if ($show_effort_stat) {
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Traveled (km) | 7,476 |
Effort hours | 39 |
}
if ($sources != null and $sources != "" and $dataset_id != 427) { // Do not show ESAS
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Contr. through | |
}
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Registered | 2018-06-27 |
Updated | 2018-08-08 |
Status | Published |
Sharing policy |
CC0 no rights reserved |
Shared with |
OBIS
GBIF (via DOI) |
See metadata in static HTML |
See metadata in FGDC XML |
See download history / statistics |
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