Northern elephant seal temperature cast data collected as part of the Tagging of Pacific Predators (TOPP) program from February 22 2004 to January 25, 2011 (NCEI Accession 0077805)
This dataset is a large collection of temperature casts recorded by fast-response archival time-depth recorder tags on northern elephant seals during their natural migrations. Only ascents (upcasts) were retained to ensure a similar format to traditional ship-based casts.
Each file represents data from a single instrument on one adult female elephant seal. Temperature and depth data were obtained from data logging tags manufactured by Wildlife Computers (MK9 or MK10). Temperature and depth values are uncorrected, raw instrument readings.
The position of each cast was estimated using a state-space model smoothing algorithm applied to the ARGOS satellite track of the seal.
Position data were obtained from a combination of GPS loggers and ARGOS PTT transmitters manufactured by Wildlife computers (SPOT4, SPOT5, or MK10) or the Sea Mammal Research Unit (SMRU SRDL)). Position data were irregular in time and contained substantial spatial error. So, we estimated a position for each station by smoothing the data using the CRAWL package in R-Cran and then applied a linear interpolation for each station.
Each file represents data from a single instrument on one adult female elephant seal. Temperature and depth data were obtained from data logging tags manufactured by Wildlife Computers (MK9 or MK10). Temperature and depth values are uncorrected, raw instrument readings.
The position of each cast was estimated using a state-space model smoothing algorithm applied to the ARGOS satellite track of the seal.
Position data were obtained from a combination of GPS loggers and ARGOS PTT transmitters manufactured by Wildlife computers (SPOT4, SPOT5, or MK10) or the Sea Mammal Research Unit (SMRU SRDL)). Position data were irregular in time and contained substantial spatial error. So, we estimated a position for each station by smoothing the data using the CRAWL package in R-Cran and then applied a linear interpolation for each station.
Dataset Citation
- Cite as: Costa, Daniel P.; UC Santa Cruz (2011). Northern elephant seal temperature cast data collected as part of the Tagging of Pacific Predators (TOPP) program from February 22 2004 to January 25, 2011 (NCEI Accession 0077805). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0077805. Accessed [date].
Dataset Identifiers
ISO 19115-2 Metadata
gov.noaa.nodc:0077805
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Time Period | 2004-02-22 to 2011-01-25 |
Spatial Bounding Box Coordinates |
West: 174.09
East: -113.69
South: 26.12
North: 59.78
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Dataset Progress Status | Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility |
Data Update Frequency | As needed |
Supplemental Information | Data were collected by Daniel Costa at UC Santa Cruz in Santa Cruz, California, USA. Relevant peer-reviewed journal articles: A publication containing the details of data collection and processing is in progress. Padman, L., D. P. Costa, S. T. Bolmer, M. E. Goebel, L. A. Huckstadt, A. Jenkins, B. I. McDonald, and D. R. Shoosmith (2010), Seals map bathymetry of the Antarctic continental shelf, Geophys. Res. Lett., 37, L21601, doi:10.1029/2010GL044921. Simmons, S. E., Y. Tremblay, and D. P. Costa (2009), Pinnipeds as ocean temperature samplers: Calibrations, validations and data quality, Limnol. Oceanogr. Methods, 7, 648<96>656. |
Purpose | This dataset is available to the public for a wide variety of uses including scientific research and analysis. |
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Last Modified: 2023-08-07T20:30:55Z
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov