| Contributors | Affiliation | Role |
|---|---|---|
| Hildebrand, John | University of California-San Diego (UCSD-SIO) | Principal Investigator |
| Allison, Dicky | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
Working Procedure:
A sonobuoy is deployed and monitored until it is out of range. The length of time the sonobuoy can be heard depends on the speed of the ship, the sonobuoy's direction relative to the ship and the prevailing sea, ice and weather conditions. When a whale is heard, an attempt is made to identify the species and note it. If a seal is heard, it is just noted as a seal. The sonobuoy was set to scuttle after 8 hours.
Questions regarding these data should be directed to:
John Hildebrand
Scripps Institution of Oceanography, UCSD
9500 Gilman Drive
La Jolla CA, 92093-0205
Email: jhildebrand@ucsd.edu
Last Updated February 22, 2006
A sonobuoy is deployed and monitored until it is out of range. The length of time the sonobuoy can be heard depends on the speed of the ship, the sonobuoy's direction relative to the ship and the prevailing sea, ice and weather conditions. When a whale is heard, an attempt is made to identify the species and note it. If a seal is heard, it is just noted as a seal. The sonobuoy was set to scuttle after 8 hours.
| File |
|---|
sonobuoy_whale.csv (Comma Separated Values (.csv), 13.62 KB) MD5:00224728a009b3900f40a9872e48843f Primary data file for dataset ID 2384 |
| Parameter | Description | Units |
| cruiseid | cruise identification | |
| year | year of cruise in YYYY format | unitless |
| deployno | sonobuoy deployment number | |
| day_gmt | day of month. GMT time | DD |
| month_gmt | month of year (01-12), GMT time | MM |
| time_gmt | time of day 24 hour clock, GMT | HHmm |
| lat | latitude, negative = South | decimal degrees |
| lon | longitude, negative = West | decimal degrees |
| inst | instrument, sonobuoy type:53B denotes DIFAR (directional fixing and ranging) sonobuoy, having a frequency range of 10 Hz to 2.5 kHz. 57B denotes an omnidirectional sonobuoy with a frequency range up to 40 kHz. | |
| Mn | Megaptera novaeangliae - humpback whale calls identified by the following codes:x = call detected x? = possible call - = no call | |
| Bb | Balaenoptera bonaerensis - Antarctic minke whale, see call codes above | |
| Bp | Balaenoptera physalus - fin whale, see call codes above | |
| Bm | Balaenoptera musculus - blue whale, see call codes above | |
| Odt | odontocete whale, see call codes above | |
| Seal | seal call, see call codes above | |
| comments | reason for sonobuoy deployment at that location, as a comment | |
| range | transmission range of sonobuoy |
| Dataset-specific Instrument Name | Sonobuoy |
| Generic Instrument Name | Sonobuoy |
| Dataset-specific Description | 53B denotes DIFAR (directional fixing and ranging) sonobuoy, having a frequency range of 10 Hz to 2.5 kHz.57B denotes an omnidirectional sonobuoy with a frequency range up to 40 kHz. |
| Generic Instrument Description | A Sonobuoy is a relatively small (typically 4 inches, or 124 mm, in diameter and 36 inches, or 910 mm, long) expendable sonar system that is dropped/ejected from aircraft or ships conducting anti-submarine warfare or underwater acoustic research. |
| Website | |
| Platform | ARSV Laurence M. Gould |
| Report | |
| Start Date | 2001-03-18 |
| End Date | 2001-04-13 |
| Description | Methods & Sampling A sonobuoy is deployed and monitored until it is out of range. The length of time the sonobuoy can be heard depends on the speed of the ship, the sonobuoy's direction relative to the ship and the prevailing sea, ice and weather conditions. When a whale is heard, an attempt is made to identify the species and note it. If a seal is heard, it is just noted as a seal. The sonobuoy was set to scuttle after 8 hours. |
| Website | |
| Platform | RVIB Nathaniel B. Palmer |
| Report | |
| Start Date | 2001-04-24 |
| End Date | 2001-06-05 |
| Description | Methods & Sampling A sonobuoy is deployed and monitored until it is out of range. The length of time the sonobuoy can be heard depends on the speed of the ship, the sonobuoy's direction relative to the ship and the prevailing sea, ice and weather conditions. When a whale is heard, an attempt is made to identify the species and note it. If a seal is heard, it is just noted as a seal. The sonobuoy was set to scuttle after 8 hours. |
| Website | |
| Platform | RVIB Nathaniel B. Palmer |
| Report | |
| Start Date | 2001-07-22 |
| End Date | 2001-08-31 |
| Description | Methods & Sampling A sonobuoy is deployed and monitored until it is out of range. The length of time the sonobuoy can be heard depends on the speed of the ship, the sonobuoy's direction relative to the ship and the prevailing sea, ice and weather conditions. When a whale is heard, an attempt is made to identify the species and note it. If a seal is heard, it is just noted as a seal. The sonobuoy was set to scuttle after 8 hours. |
The fundamental objectives of United States Global Ocean Ecosystems Dynamics (U.S. GLOBEC) Program are dependent upon the cooperation of scientists from several disciplines. Physicists, biologists, and chemists must make use of data collected during U.S. GLOBEC field programs to further our understanding of the interplay of physics, biology, and chemistry. Our objectives require quantitative analysis of interdisciplinary data sets and, therefore, data must be exchanged between researchers. To extract the full scientific value, data must be made available to the scientific community on a timely basis.
U.S. GLOBEC (GLOBal ocean ECosystems dynamics) is a research program organized by oceanographers and fisheries scientists to address the question of how global climate change may affect the abundance and production of animals in the sea.
The U.S. GLOBEC Program currently had major research efforts underway in the Georges Bank / Northwest Atlantic Region, and the Northeast Pacific (with components in the California Current and in the Coastal Gulf of Alaska). U.S. GLOBEC was a major contributor to International GLOBEC efforts in the Southern Ocean and Western Antarctic Peninsula (WAP).
| Funding Source | Award |
|---|---|
| NSF Antarctic Sciences (NSF ANT) |