Autonomous Behaving Lagrangian Explorer (ABLE) output for 5 taxonomic groups examined from the R/V Cape Horn in the upwelling region of the west coast of California, USA in August 2015 (NCEI Accession 0278538)
This dataset contains biological and physical data collected on R/V Cape Horn during cruise 20150821_CapeHorn in the North Pacific Ocean from 2015-08-19 to 2015-08-21. These data include PAR, salinity calculated from CTD primary sensors, taxon, and water temperature. The instruments used to collect these data include Autonomous Behaving Lagrangian Explorer. These data were collected by Donna Wolcott and Thomas G. Wolcott of North Carolina State University and John L. Largier and Steven Morgan of University of California-Davis as part of the "Collaborative Research: Field test of larval behavior on transport and connectivity in an upwelling regime (ABLE)" project. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2019-08-01.
The following is the text of the dataset description provided by BCO-DMO:
Autonomous Behaving Lagrangian Explorer (ABLE) output for 5 taxonomic groups
Dataset Description:
Autonomous Behaving Lagrangian Explorer (ABLE) output for 5 taxonomic groups (Cyprid, Melibe, Pluteus, Pteropod, and Velella).
The following is the text of the dataset description provided by BCO-DMO:
Autonomous Behaving Lagrangian Explorer (ABLE) output for 5 taxonomic groups
Dataset Description:
Autonomous Behaving Lagrangian Explorer (ABLE) output for 5 taxonomic groups (Cyprid, Melibe, Pluteus, Pteropod, and Velella).
Dataset Citation
- Cite as: Morgan, Steven; Largier, John L.; Wolcott, Donna; Wolcott, Thomas G. (2023). Autonomous Behaving Lagrangian Explorer (ABLE) output for 5 taxonomic groups examined from the R/V Cape Horn in the upwelling region of the west coast of California, USA in August 2015 (NCEI Accession 0278538). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0278538. Accessed [date].
Dataset Identifiers
ISO 19115-2 Metadata
gov.noaa.nodc:0278538
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information +1-301-713-3277 NCEI.Info@noaa.gov |
Dataset Point of Contact |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Time Period | 2015-08-19 to 2015-08-21 |
Spatial Bounding Box Coordinates |
West: -123.084
East: -122.964
South: 38.219
North: 38.31
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Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns |
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 | Acquisition Description: Sampling: ABLE 6218 (aka Velella) – constant depth of 3m ABLE 6155 (aka Cyprid) – diel vertical migration 3-15m, 2.0 cm/s, up 3:00/down 13:00 ABLE 6157 (aka Pteropod) – diel vertical migration 3-15m, 2.0 cm/s, up 3:00/down 13:00 ABLE 5996 (aka Pluteus) – constant depth 15m ABLE 6031 (aka Melibe) – constant depth 15m We simulated documented behaviors using the Autonomous Behaving Lagrangian Explorer (ABLE). ABLE, designed by Tom Wolcott, is a biomimetic robotic drifter that senses in situ environmental stimuli (e.g., variations in PAR, pressure, salinity, or temperature). It can be programmed to maintain depth or vertically migrate in response to in-situ variables, like the larvae under study. It can reveal quasi-Lagrangian transport of vertically migrating plankters that swim between water parcels at different depths. ABLE weighs 3 kg and is 36 cm tall, topped by a 15 cm antenna mast. It necessarily integrates water motions at and below its own scale. Consequently, it cannot mimic transport of individual plankters, nor diffusive processes at scales smaller than its own. ABLE best simulates the transport of the centroid of a cloud of plankters that is large relative to its own dimensions. ABLE dynamically calculates its target depth from measurements of its immediate microenvironment and a behavioral model for the organism being simulated. It moves toward the new target depth at a biologically realistic velocity, permitting it to show transport consequences of adaptive behaviors in response to actual (not average) conditions and actual (not modeled) water movements. Because behavioral patterns are under the experimenter’s control, ABLE can reveal effects of either known or hypothetical behavior patterns. ABLE has no structures outside the parcel of water in which it is embedded, hence no extraneous drag that would cause drift errors. Use of ABLE (unlike modeling) requires no a priori characterization of the system before the first data can be collected; immediately upon deployment it begins yielding information on how water and organisms in the system move. Although ABLE has no extraneous drag, hence no drift errors, while embedded in the tracked water parcel, it must periodically leave that parcel and make excursions to the surface to obtain and transmit GPS fixes. A drift error is created by velocity differences (relative to the target parcel) at other depths multiplied by the time ABLE spends transiting each during a pop-up, which cannot be simply estimated in heterogeneous systems. A rule of thumb analogous to that for suspended-drogue drifters would be that ABLE must spend <1/40 of the time making excursions to the surface. As target (operating) depth increases, transit time to the surface increases, and hence allowable fix frequency decreases. To facilitate tracking, it has an ultrasonic beacon that provides bearings and telemeters depth during operation at depth; when at the surface it obtains fixes from its GPS receiver and transmits the fix data by VHF radio (short range) and satellite modem (global range). The GPS fix obtained at each surface interval is logged in ABLE’s data memory, even if it is not received by the Globalstar satellite system. To facilitate recovery at the sea surface, it transmits updated fixes continuously by VHF and periodically via satellite while blinking high-brightness LED beacons for visual fixes. We also command ABLE to surface for recovery by decoding ultrasonic signals while rejecting noise from surf and biota. It senses the bottom and swims up a programmed distance above the substrate. When deployed, it uses measurements of in-situ variables (depth, T, S, PAR, time of day, vertical speed relative to water). It subtly adjusts buoyancy (by < 1g) to "swim" toward that target depth, maintaining a rate realistic for the organism being simulated (0 to >10 cm/s). It periodically pops to the surface to obtain a GPS fix and transmit it by VHF, ultrasonic pinger and satellite (or cell phone) modem. Along its entire trajectory, it logs in-situ measurements; the suite of variables and frequency of logging are user-selectable. On the bench, ABLE communicates by wireless Bluetooth with a host computer or smart phone and presents a menu for downloading logged data, testing and calibrating sensors, altering data logging parameters, or even rewriting the entire program. Endurance during deployments is about 2 wk with 7 NiMH "D" cells, depending on frequency of excursions to the surface and pumping of ballast to hoist antennas. ABLEs were deployed by boat at pre-defined locations and retrieved a pre-defined number of days later. |
Purpose | This dataset is available to the public for a wide variety of uses including scientific research and analysis. |
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Platform keywords | BCO-DMO Platform Names Global Change Master Directory (GCMD) Platform Keywords |
Instrument keywords | BCO-DMO Standard Instruments Originator Instrument Names |
Place keywords | NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords Provider Place Names |
Project keywords | BCO-DMO Standard Projects Provider Cruise IDs Provider Funding Award Information |
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Last Modified: 2024-06-26T15:35:16Z
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