Dataset: Seaglider observations at Station ALOHA in the North Pacific Subtropical Gyre

Name: Depth profiles from Seagliders 146, 147, 148, 511, 512, and 626 in a total of 18 missions at Station ALOHA in the North Pacific Subtropical Gyre from 2008-2023
Published: 2025-01-03
Keywords: North Pacific Subtropical Gyre, Gliders, ALOHA, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.928732.1

Spatial Extent: N:23.78321667 E:-156.47122547 S:20.31742889 W:-160.55633364

Temporal Extent: 2008-08-14 - 2023-08-13

Project:

Oligotrophic ocean metabolism from underwater glider observations (Glider Ocean Metabolism)

Principal Investigator:

Sara Ferrón (University of Hawaiʻi at Mānoa)

David M. Karl (University of Hawaiʻi at Mānoa)

Co-Principal Investigator:

Benedetto Barone (University of Hawaiʻi at Mānoa)

Scientist:

Catherine Garcia (University of Hawaiʻi at Mānoa)

Technician:

Steve Poulos (University of Hawaiʻi at Mānoa)

BCO-DMO Data Manager:

Lynne M. Merchant (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2025-01-03

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Depth profiles from Seagliders 146, 147, 148, 511, 512, and 626 in a total of 18 missions at Station ALOHA in the North Pacific Subtropical Gyre from 2008-2023

Abstract:

This dataset includes over 20,000 depth profiles collected with underwater gliders in a total of 18 missions between 2008 and 2023. The glider missions were centered at the long-term sampling site of the Hawaii Ocean Time-series (HOT) program, Station ALOHA (22°45′N, 158°W), within the North Pacific Subtropical Gyre. The gliders were equipped with sensors to measure temperature, salinity, pressure, dissolved oxygen concentration, chlorophyll a concentration from fluorescence (excitation/emission lambda = 470/695 nm), and the particulate backscattering coefficient at three wavelengths (lambda = 470 nm, 700 nm, and either 650 or 660 nm depending upon mission). Vertical profiles down to at least 200 m were collected for all sensors over periods of several months per mission. Chlorophyll a and oxygen concentrations are calibrated with discrete observations. Particulate backscattering coefficients are corrected with an additional dark subtraction. This dataset differs from the raw data files in that it is quality controlled, calibrated, and corrected. Raw data files can be found at https://hahana.soest.hawaii.edu/seagliders/index.php. The glider observations were collected over the years by Dr. Karl, with different funding sources (including NSF) to investigate carbon cycle processes in the oligotrophic North Pacific Subtropical Gyre. Dr. Ferron and Dr. Barone received NSF funding to conduct a re-analysis of this comprehensive dataset in order to characterize metabolic rates and understand their patterns of variability. Dr. Garcia conducted the data processing that resulted in this curated dataset. Steve Poulos operated the Seagliders in all missions.

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Archival Copy

Version Date	Archive	Persistent Identifier (PID)	Date PID Issued
2025-01-02	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.928732.1	2025-02-07

Description

This BCO-DMO dataset page contains supporting metadata and CSV formatted datasets for seaglider deployments from 2008 to 2023. Additional NetCDF formatted datasets, containing parameters in the CSV formatted datasets along with raw data and QC values, for seaglider deployments from 2008 to 2023 are available at Zenodo, DOI: 10.5281/zenodo.10416616. See the “Related Datasets” section.

All the seaglider deployments dataset files have the same parameters which are defined on this dataset page. Individual seaglider deployments did not measure all of the parameters, though, e.g. either bbp650 or bbp660, and in that case, values are left blank for unmeasured parameters.

Parameters in common with the NetCDF formatted datasets and the CSV formatted datasets are: ISO_DateTime_UTC, lat, lon, depth, divenum, direction, temp, cond, salin, sigma, oxygen, chla, bbp470, bbp470_spikeflag, bbp650, bbp650_spikeflag, bbp660, bbp660_spikeflag, bbp700, and bbp700_spikeflag.

Parameters specific to the CSV formatted datasets are: seaglider_deployment, seaglider_platform, and seaglider_mission.

Additional parameters included in the NetCDF files are pressure, pitch, raw data, chla_spikeflag, and QC flags: press, pitch, oxygen_raw, chla_raw, chla_spikeflag, bbp470_raw, bbp650_raw, bbp660_raw, bbp700_raw, temp_qcflag, cond_qcflag, salin_qcflag, sigma_qcflag, oxygen_qcflag, chla_qcflag, bbp470_qcflag, bbp650_qcflag, bbp660_qcflag, and bbp700_qcflag

The supplemental file seaglider_deployments_metadata.csv contains the locations and dates of each seaglider deployment and recovery via ships and small boats along with the locations and dates of data collection for each seaglider deployment. Additional metadata columns with flags of True or False were included to indicate if the following parameters are measured in an individual deployment dataset: oxygen, bbp650, bbp660, and bbp700. These flag columns were added because deployments either measured bbp650 or bbp660, and oxygen and bbp700 are not always measured during a deployment. All the seaglider deployments dataset files have the same parameters to enable datasets to be more easily queried and combined programmatically.

Methods & Sampling

Vertically resolved data were collected by underwater Seagliders, which are guided autonomous underwater vehicles developed at the University of Washington’s Applied Physics lab (Eriksen et al., 2001). The Seagliders were piloted either in a circular or 'bowtie' pattern for several months in each mission around Station ALOHA.

Gliders were equipped with the sensors to measure temperature and salinity (Seabird CT Sail), pressure (Paine Electronics 211-75-710-05 and Kistler 4260M00), dissolved oxygen (Aandera models 5013 and 4330), chlorophyll fluorescence and optical backscatter at three wavelengths: 470 nm, 700 nm, and either 650 or 660 nm (WET Labs ECO Triplet ).

Data Processing Description

The raw observations were quality-controlled, accounting for known sensor responses and deviations from factory calibrations. Detailed descriptions of the data processing, quality control metrics, and calibration methods are provided by Garcia et al. (2023; https://doi.org/10.5281/zenodo.10416616). Quality control steps included a pitch angle test (to detect density inversions), global and regional range tests, stuck value test, biofouling evidence test, and visual inspection. If a test passed, the data were assigned a QC value of 1 (‘good data’). If a test failed (e.g. out of range or density inversion tests), data were flagged, either as ‘questionable data’ (QC = 3) or as ‘bad data’ (QC = 4). All quality control flags and adjustments (i.e. calibration and correction parameters) are preserved in each mission’s file. Code for all processing steps is available on GitHub: https://github.com/cathygarcia/SeagliderDataprocessing.

Data processing steps for each variable are summarized below:

Temperature, Conductivity, Salinity, and Potential Density Anomaly

Both temperature and conductivity profiles were lag corrected.
Practical salinity was calculated using the Gibbs Seawater Toolbox (McDougall et al., 2011), (gsw_SP_from_C.m), and then converted to absolute salinity (gsw_SA_from_SP.m).
Potential density anomaly was calculated with respect to a reference water pressure of 0 db using the Gibbs Seawater Toolbox (gsw_sigma0.m).

Dissolved oxygen concentrations

Raw optode phase values proceeded through a series of corrections to account for the effects of temperature, salinity, pressure, and time response in addition to sensor drift (Bittig et al., 2018, Barone et al., 2019).
Optode phase values were converted to dissolved oxygen concentrations, and re-calibrated using discrete Winkler measurements.

Chlorophyll a

Factory-calibrated chlorophyll a observations were re-calibrated using discrete measurements of either HPLC chlorophyll a (16 missions) or fluorometric chlorophyll a (2 missions).
Daytime chlorophyll a values are not quench corrected, and may be lower than actual values. It is recommended to use nighttime profiles near the surface.

Backscattering coefficient due to particles (bbp)

Factory-calibrated bbp values could have a large offset, that was not expected based on natural variability.
A mission-specific deep dark correction (1st percentile of bbp at 190-200 m) was subtracted for each bbp dataset. Both the uncorrected and corrected data are available.
Additionally, a spike flag is included based on published protocol (Briggs et al., 2011).

BCO-DMO Processing

I. Submitted files were processed with the BCO-DMO dataset processing tool Laminar

Overview

The following Seaglider datasets, one for each deployment, were submitted to BCO-DMO as Excel worksheets with two sheets in each file, a sheet with the dataset and a sheet with dataset metadata:
sg146_4_qc_pass.xlsx, sg146_6_qc_pass.xlsx, sg146_9_qc_pass.xlsx
sg146_5_qc_pass.xlsx, sg146_7_qc_pass.xlsx sg147_4_qc_pass.xlsx
sg148_11_qc_pass.xlsx sg148_16_qc_pass.xlsx sg148_8_qc_pass.xlsx
sg148_12_qc_pass.xlsx sg148_6_qc_pass.xlsx sg148_9_qc_pass.xlsx
sg511_21_qc_pass.xlsx
sg512_1_qc_pass.xlsx sg512_3_qc_pass.xlsx sg512_4_qc_pass.xlsx
sg626_1_qc_pass.xlsx, sg626_4_qc_pass.xlsx

These files were processed and combined in 3 different ways. 1) First the submitted files were processed for each deployment. These processed datasets were saved using the naming format of 928732_suppl_seaglider_obs_sta_aloha_<deployment>.csv where <deployment> is the seaglider deployment id. These files are in the “Supplemental Files” section of the BCO-DMO dataset page. 2) Second, the submitted files were processed for each deployment and then deployment datasets in the same year were combined. The deployments for 2010 and 2011 overlapped, so a combined dataset was created using both 2010 and 2011 deployment datasets. These processed datasets were saved using the naming format of 928732_suppl_seaglider_obs_sta_aloha_<year>.csv where <year> is the common year or years of deployment. These files are in the “Data Files” section of the BCO-DMO dataset page. 3) Third, the datasets where deployments were combined by year in Laminar were all combined into one dataset spanning the years 2008 to 2023. The processed combined dataset was saved as 928732_v1_seaglider_observations_sta_aloha_2008_2023.csv. This file is in the “Data Files” section of the BCO-DMO dataset page.

Processing common to each of the 3 datasets processing steps

Using the BCO-DMO laminar data processing tool, each submitted seaglider Excel file with the naming format of <deployment>_qc_pass.xlsx where <deployment> is the lower-cased deployment value, e.g. sg146_4 were loaded into Laminar. The datasets spanned from 2008 to 2023. The Excel sheets labeled ‘Data’ were used as the deployment datasets to process.
Columns were added to each deployment dataset for any parameters not recorded in the deployment to have all datasets contain the same parameters. For example, if the parameter bbp650 is missing from a dataset because it was not measured for a deployment, an empty parameter column named bbp650 was added. Possible missing measured parameters include one or more of the following: oxygen, bbp650, bbp660, and bbp700.
Three columns containing the seaglider deployment ID, seaglider platform ID, and seaglider mission number were added to each deployment dataset to differentiate the datasets. The parameter ‘time’ was renamed to the BCO-DMO parameter name ‘ISO_DateTime_UTC’ to better represent the parameter containing UTC datetime values in the ISO8601 format. The latitude and longitude values were rounded from 10 to 8 digit precision which is approximately a resolution of 1.11 mm. The columns were reordered so that all deployment datasets have the same column order.

1) Processing for individual deployments

These individual deployment processed datasets using the common processing steps described earlier were saved using the naming format of 928732_suppl_seaglider_obs_sta_aloha_<deployment>.csv where <deployment> is the seaglider deployment id. These files are in the “Supplemental Files” section of the BCO-DMO dataset page.

2) Processing to combined deployments by year

These individual deployment processed datasets using the common processing steps described earlier were combined by deployment year. The deployments for 2010 and 2011 overlapped, so a combined dataset was created using both 2010 and 2011 deployment datasets. These combined processed datasets were saved using the naming format of 928732_suppl_seaglider_obs_sta_aloha_<year>.csv where <year> is the common year or years of deployment. These files are in the “Data Files” section of the BCO-DMO dataset page.

3) Processing to combine all deployments

The yearly combined processed datasets created in step 2 were combined into one dataset. The processed combined dataset was saved as 928732_v1_seaglider_observations_sta_aloha_2008_2023.csv. This file is in the “Data Files” section of the BCO-DMO dataset page.

II. Metadata table created

After the files were processed with Laminar, a metadata table was created using information from the BCO-DMO submission and the deployment datasets. The metadata table was saved as the file seaglider_deployments_metadata.csv in the ‘Supplemental Files’ section on the BCO-DMO dataset page. The definitions of the parameters in the metadata table were saved in the file parameters_for_seaglider_deployments_metadata.csv in the ‘Supplemental Files’ section on the BCO-DMO dataset page.

This metadata table contains the locations and dates of each seaglider deployment and recovery via ships and small boats along with the locations and dates of data collection for each seaglider deployment. Additional metadata columns with flags of True or False were included to indicate if the following parameters are measured in an individual deployment dataset: oxygen, bbp650, bbp660, and bbp700. These flag columns were added because deployments either measured bbp650 or bbp660, and oxygen and bbp700 are not always measured during a deployment.

Data Files

File
Seaglider observations at Station Aloha from 2008 to 2023 filename: 928732_v1_seaglider_observations_sta_aloha_2008_2023.csv (Comma Separated Values (.csv), 1.13 GB) MD5:8ce8c5dee8370a57d1ef8d80b77b1639 Seaglider observations at Station Aloha from 2008 to 2023. This file is a combination of all the seaglider deployment datasets. This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section. Primary data file for dataset ID 928732, version 1
Seaglider observations at Station Aloha in 2008 filename: 928732_suppl_seaglider_obs_sta_aloha_2008.csv (Comma Separated Values (.csv), 44.53 MB) MD5:5a97a170ac4fb130e2ac10ccf51cc4fc This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha in 2009 filename: 928732_suppl_seaglider_obs_sta_aloha_2009.csv (Comma Separated Values (.csv), 166.24 MB) MD5:72367bb2135a1d502fca8aa1953e9d69 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha in 2010 - 2011 filename: 928732_suppl_seaglider_obs_sta_aloha_2010_2011.csv (Comma Separated Values (.csv), 248.24 MB) MD5:40592464e39e58c860e3688a9d08eadc This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha in 2012 filename: 928732_suppl_seaglider_obs_sta_aloha_2012.csv (Comma Separated Values (.csv), 145.91 MB) MD5:6cb4a780536ecd6224dcd787987b76bb This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha in 2013 filename: 928732_suppl_seaglider_obs_sta_aloha_2013.csv (Comma Separated Values (.csv), 111.45 MB) MD5:465017e74bfeab727a5105e760335dbf This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha in 2014 filename: 928732_suppl_seaglider_obs_sta_aloha_2014.csv (Comma Separated Values (.csv), 62.57 MB) MD5:5ebc6caa74b1bac3e3e4ceaff17c73d5 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha in 2017 filename: 928732_suppl_seaglider_obs_sta_aloha_2017.csv (Comma Separated Values (.csv), 71.00 MB) MD5:fa69ccfe2aadfac02fae3d5d25d537a8 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha in 2020 filename: 928732_suppl_seaglider_obs_sta_aloha_2020.csv (Comma Separated Values (.csv), 99.39 MB) MD5:759abb09028ec828b1aa5a75ae044a9e This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha in 2023 filename: 928732_suppl_seaglider_obs_sta_aloha_2023.csv (Comma Separated Values (.csv), 203.17 MB) MD5:db212d5d5ebdd5acb876f5fd1c994f69 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.

Supplemental Files

File
Parameter definitions for the seaglider deployments metadata file filename: parameters_for_seaglider_deployments_metadata.csv (Comma Separated Values (.csv), 2.10 KB) MD5:750fe0978f9a039f660e8565d9690297 Parameter definitions for the seaglider deployments metadata file seaglider_deployments_metadata.csv in the ‘Supplemental Files’ section.
Seaglider deployments metadata filename: seaglider_deployments_metadata.csv (Comma Separated Values (.csv), 4.34 KB) MD5:f6d3ef5e5d54ae93ba00a4999e850d26 This metadata table contains the locations and dates of each seaglider deployment and recovery via ships and small boats along with the locations and dates of data collection for each seaglider deployment. Additional metadata columns with flags of True or False are included to indicate if the following parameters are measured in an individual deployment dataset: oxygen, bbp500, bbp600, and bbp700. These flag columns were added because deployments either measured bbp500 or bbp600, and oxygen and bbp700 are not always measured during a deployment. The definitions of the parameters in the metadata table are in the file parameters_for_seaglider_deployments_metadata.csv in the the 'Supplemental Files' section.
Seaglider observations at Station Aloha for deployment SG148-6 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg148_6.csv (Comma Separated Values (.csv), 44.53 MB) MD5:5a97a170ac4fb130e2ac10ccf51cc4fc This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha for deployment SG626-1 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg626_1.csv (Comma Separated Values (.csv), 71.00 MB) MD5:4f665e1dab24ec2b1044ae936ca98bc6 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG146-4 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg146_4.csv (Comma Separated Values (.csv), 19.44 MB) MD5:c1c7ab611dba7fd18cfd4bb0d6c95d06 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG146-5 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg146_5.csv (Comma Separated Values (.csv), 67.10 MB) MD5:e4856e128c5c832c5a3f50f601f80430 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG146-6 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg146_6.csv (Comma Separated Values (.csv), 60.28 MB) MD5:777a57b02263535c151d51d0e9751b6f This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG146-7 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg146_7.csv (Comma Separated Values (.csv), 28.23 MB) MD5:eb291aeec6f4615baf01cccdd59e6cd7 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG146-9 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg146_9.csv (Comma Separated Values (.csv), 62.57 MB) MD5:7d553f7ec10c5b11a95571afe60a9d4f This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG147-4 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg147_4.csv (Comma Separated Values (.csv), 101.34 MB) MD5:b31680cfe369f80990c3fec99ebf67dd This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG148-11 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg148_11.csv (Comma Separated Values (.csv), 52.49 MB) MD5:ec7400fdd7d1325dbe6c1c9f48b779f8 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG148-12 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg148_12.csv (Comma Separated Values (.csv), 59.93 MB) MD5:701e61be9cb91dd8c4b0229877e66ed8 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG148-16 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg148_16.csv (Comma Separated Values (.csv), 99.39 MB) MD5:9fb930b358d8c3c8cd68624f5f983f0a This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG148-8 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg148_8.csv (Comma Separated Values (.csv), 45.45 MB) MD5:ec3d63fddc0907963f9f16e3e8c2e330 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG148-9 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg148_9.csv (Comma Separated Values (.csv), 60.80 MB) MD5:d693de28942cb327c109521a6d004224 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG511-21 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg511_21.csv (Comma Separated Values (.csv), 136.85 MB) MD5:358bb23f970bce683d3ad5c12d39e7d8 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG512-1 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg512_1.csv (Comma Separated Values (.csv), 60.06 MB) MD5:fdd2db11dc6bc3695a624444c03fe8b6 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG512-3 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg512_3.csv (Comma Separated Values (.csv), 65.19 MB) MD5:f4c069c6d61ab132961152e268864e92 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG512-4 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg512_4.csv (Comma Separated Values (.csv), 51.53 MB) MD5:348c68ab458f607610d08e933a0aebc3 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.
Seaglider observations at Station Aloha from deployment SG626-4 filename: seaglider_obs_at_sta_aloha_by_deployment_mission/928732_suppl_seaglider_obs_sta_aloha_sg626_4.csv (Comma Separated Values (.csv), 66.31 MB) MD5:325b8fbc1db0f3896c49931611aca772 This file includes the same parameters listed on the BCO-DMO dataset page in the 'Parameters' section.

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-2048435

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
Karl_Station_Aloha_Hawaii_Ms_Mahi		2010-08-13	small boat: Ms Mahi	David M. Karl (Principal Investigator)	data info
Karl_Station_Aloha_Hawaii_Red_Raven		2009-05-12	small boat: Red Raven	David M. Karl (Principal Investigator)	data info
KM0814	OPEREX C-MORE Ocean Pertubation Experiment (OPEREX)	2008-07-30	R/V Kilo Moana	Dr Zbigniew Kolber (Chief Scientist)	data info
KM0820	HOT-205	2008-10-09	R/V Kilo Moana	Susan E. Curless (Chief Scientist)	data info
KM0914		2009-06-22	R/V Kilo Moana	Matthew J. Church (Chief Scientist)	data info
KM0916	WHOTS-6	2009-07-09	R/V Kilo Moana	Albert Plueddemann (Chief Scientist)	data info
KM0918	HOT-213	2009-07-23	R/V Kilo Moana	Susan E. Curless (Chief Scientist)	data info
KM1217	HOE-DYLAN VII	2012-08-05	R/V Kilo Moana	Sonya T. Dyhrman (Chief Scientist)	data info
KM1309	PhoRII	2013-05-22	R/V Kilo Moana	Dr Karin Bjorkman (Chief Scientist)	data info
KM1316		2013-09-16	R/V Kilo Moana	Dr Tara M. Clemente (Chief Scientist)	data info
KM1409	HOE-BOE I	2014-03-11	R/V Kilo Moana	Samuel Wilson (Chief Scientist)	data info
KM1412	Agouron-10	2014-06-09	R/V Kilo Moana	Matthew J. Church (Chief Scientist)	data info
KM1427		2014-12-08	R/V Kilo Moana	Samuel Wilson (Chief Scientist)	data info
KM1702	HOT-289	2017-01-22	R/V Kilo Moana	R. Walter Deppe (Chief Scientist)	data info
KM2010		2020-08-28	R/V Kilo Moana	Angelicque E. White (Chief Scientist)	data info
KM2013	HOT-324	2020-11-17	R/V Kilo Moana	Fernando Santiago-Mandujano (Chief Scientist)	data info
KM2305	HOT-341	2023-03-27	R/V Kilo Moana	Tully Rohrer (Chief Scientist)	data info
KM2306	HOT-342	2023-05-24	R/V Kilo Moana	Carolina Funkey (Chief Scientist)	data info
KM2309		2023-07-17	R/V Kilo Moana	Treyson Gillespie (Chief Scientist)	data info
KM2311	HOT-343	2023-08-04	R/V Kilo Moana	Fernando Santiago-Mandujano (Chief Scientist)	data info
KOK0917	HOT-216	2009-11-02	R/V Ka`imikai-O-Kanaloa	Paul J. Lethaby (Chief Scientist)	data info
KOK0917	HOT-216	2009-11-02	R/V Ka`imikai-O-Kanaloa	Paul J. Lethaby (Chief Scientist)	data info
KOK1106c	KOK11-06c	2011-03-29	R/V Ka`imikai-O-Kanaloa	David M. Karl (Chief Scientist)	data info
KOK1107	HOT-232	2011-05-08	R/V Ka`imikai-O-Kanaloa	Susan E. Curless (Chief Scientist)	data info
KOK1204	HOE-DYLAN I	2012-05-21	R/V Ka`imikai-O-Kanaloa	Dr Tara M. Clemente (Chief Scientist)	data info
KOK1205	HOE-DYLAN II HOT-242	2012-05-29	R/V Ka`imikai-O-Kanaloa	Susan E. Curless (Chief Scientist)	data info
KOK1707	HOT-292	2017-04-24	R/V Ka`imikai-O-Kanaloa	Daniel W. Sadler (Chief Scientist)	data info
TN258	HOT-227	2010-11-20	R/V Thomas G. Thompson	Craig Nosse (Chief Scientist)	data info

Instruments

Aanderaa Oxygen Optodes

Supplied Name: Aandera oxygen optode models 5013 and 4330

Supplied Description:

Instrument Type

Generic Name: Aanderaa Oxygen Optodes

Acronym: AOO

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/351/

Generic Description:

Aanderaa Oxygen Optodes are instrument for monitoring oxygen in the environment. For instrument information see the Aanderaa Oxygen Optodes Product Brochure.

Pressure Sensor

Supplied Name: Kistler Piezoresistive Pressure Sensor 4260M00

Supplied Description:

Instrument Type

Generic Name: Pressure Sensor

Generic Description:

A pressure sensor is a device used to measure absolute, differential, or gauge pressures. It is used only when detailed instrument documentation is not available.

Pressure Sensor

Supplied Name: Paine Electronics Pressure Transducer series 211-75-710, part number 211-75-710-05

Supplied Description:

Instrument Type

Generic Name: Pressure Sensor

Generic Description:

A pressure sensor is a device used to measure absolute, differential, or gauge pressures. It is used only when detailed instrument documentation is not available.

Sea-Bird CT Sail CTD

Supplied Name: Seabird CT Sail

Supplied Description:

Instrument Type

Generic Name: Sea-Bird CT Sail CTD

Acronym: SBE CT Sail

Generic Description:

Description taken from NERC: https://vocab.nerc.ac.uk/collection/L22/current/TOOL1188/

A self-contained unpumped unit comprising the temperature, conductivity and pressure sensors that is designed specifically for deployment on ocean gliders. The sensors are typically installed externally on the hull of the glider. These are OEM products with variable specifications; they are calibrated in a calibration fixture at Sea-Bird, removed from that fixture, and installed in a housing that Sea-Bird does not know or have control over. Additionally, sensor performance is dependent on flow rate through the cell and water column temperature and salinity gradients.

More information can be found in the following document

OceanGliders (n.d.). OceanGliders Salinity SOP. https://oceangliderscommunity.github.io/Salinity_SOP/

Seaglider

Supplied Description:

Instrument Type

Generic Name: Seaglider

Generic Description:

The Seaglider is an autonomous underwater vehicle developed through a collaboration between The Applied Physics Laboratory -University of Washington and the University of Washington School of Oceanography. These small, free-swimming vehicles can gather conductivity-temperature-depth (CTD) data from the ocean for months at a time and transmit it to shore in near-real time via satellite data telemetry. Seagliders make oceanographic measurements traditionally collected by research vessels or moored instruments. They can survey along a transect, profile at a fixed location, and can be commanded to alter their sampling strategies throughout a mission.

Wet Labs ECO Triplet

Supplied Name: WET Labs ECO Triplet

Supplied Description:

Instrument Type

Generic Name: Wet Labs ECO Triplet

Acronym: Triplet

Generic Description:

The Wet Labs ECO Triplet is a special-order, three-optical-sensor instrument available from WET Labs (wetlabs.com) in a user-defined configuration. The Triplet addresses the need for multiple simultaneous scattering and fluorescence sensors for autonomous vehicles and unattended measurement platforms. For example, possible configurations include any combination of three of the following: Blue scattering, Green scattering, Red scattering, Chlorophyll fluorescence, CDOM fluorescence, Phycoerythrin fluorescence, Phycocyanin fluorescence, Rhodamine fluorescence, or Uranine (fluorescein) fluorescence.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
seaglider_deployment	Seaglider deployment	unitless	deployno
seaglider_platform	Seaglider platform	unitless	platform
seaglider_mission	Seaglider mission	unitless	no_bcodmo_term
ISO_DateTime_UTC	Date and time (UTC) in ISO8601 format Format: %Y-%m-%dT%H:%M:%S	unitless	ISO_DateTime_UTC
lat	latitude, South is negative	decimal degrees	lat
lon	longitude, West is negative	decimal degrees	lon
depth	Depth	meters (m)	depth
divenum	Dive number	unitless	dive_id
direction	Profile direction (down or up)	unitless	no_bcodmo_term
temp	Temperature	degrees Celsius	temp
cond	Conductivity	millisiemens/centimeter (mS cm-1)	cond
salin	Absolute Salinity	gram/kilogram (g/kg)	sal
sigma	Potential Density Anomaly wrt 0 db	kilogram/cubic meter (kg/m^3)	no_bcodmo_term
oxygen	Dissolved oxygen concentration	micromole/Liter (umol/L)	O2
chla	Chlorophyll a concentration	miligram/cubic meter (mg/m^3)	chl_a
bbp470	Particle Backscattering Coefficient (470 nm)	reciprocal meter (m^-1)	bbp470
bbp470_spikeflag	Particle Backscattering Coefficient (470 nm) spike flag ( 0= no spikes and 1 = spikes)	unitless	flag
bbp650	Particle Backscattering Coefficient (650 nm)	reciprocal meter (m^-1)	bbp650
bbp650_spikeflag	Particle Backscattering Coefficient (650 nm) spike flag ( 0= no spikes and 1 = spikes)	unitless	flag
bbp660	Particle Backscattering Coefficient (660 nm)	reciprocal meter (m^-1)	bbp660
bbp660_spikeflag	Particle Backscattering Coefficient (660 nm) spike flag ( 0= no spikes and 1 = spikes)	unitless	flag
bbp700	Particle Backscattering Coefficient (700 nm)	reciprocal meter (m^-1)	bbp700
bbp700_spikeflag	Particle Backscattering Coefficient (700 nm) spike flag ( 0= no spikes and 1 = spikes)	unitless	flag

Status message

Database

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Dataset: Seaglider observations at Station ALOHA in the North Pacific Subtropical Gyre