Stream discharge, turbidity, and suspended sediment concentration in Faga'alu watershed, American Samoa from 2012-01-12 to 2016-11-15 (NCEI Accession 0191818)

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Data on water level (stage), turbidity (T), and suspended sediment concentration (SSC) were collected in the Faga'alu watershed in American Samoa from 2012-2016. Stage data were combined with a rating curve to calculate discharge (Q, m3/s). Monitoring sites included a forested site (F1: stage, T, SSC), a site downstream of a quarry (F2: T, SSC), and a site upstream of the discharge point to the ocean (F3: stage, T, SSC). Grab samples of water for SSC were collected at F1, F2, F3, and some supplemental sites. See Messina and Biggs (2016) and Holst-Rice et al (2016) for details.
  • Cite as: Biggs, Trent; Messina, Alex; Holst-Rice, Susie; Curtis, Meagan (2019). Stream discharge, turbidity, and suspended sediment concentration in Faga'alu watershed, American Samoa from 2012-01-12 to 2016-11-15 (NCEI Accession 0191818). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://accession.nodc.noaa.gov/0191818. Accessed [date].
gov.noaa.nodc:0191818
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Distributor DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact Information Services
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Time Period 2012-01-12 to 2016-11-15
Spatial Bounding Box Coordinates
N: -14.2882
S: -14.2914
E: -170.685
W: -170.694
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • publication: 2019-07-27
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
Submission Package ID: 7XBJY3
Purpose The data were collected to determine the impacts of human activities on discharge and sediment load to the coast.
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Biggs, Trent; Messina, Alex; Holst-Rice, Susie; Curtis, Meagan (2019). Stream discharge, turbidity, and suspended sediment concentration in Faga'alu watershed, American Samoa from 2012-01-12 to 2016-11-15 (NCEI Accession 0191818). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://accession.nodc.noaa.gov/0191818. Accessed [date].
Cited Authors
  • Biggs, Trent
  • Messina, Alex
  • Holst-Rice, Susie
  • Curtis, Meagan
Principal Investigators
  • Trent Biggs
Contributors
Resource Providers
Publishers
Acknowledgments
  • Related Funding Agency: US DOC, American Samoa
  • Related Funding Agency: National Fish and Wildlife Foundation
  • Related Funding Agency: US DOC; NOAA; NOS; Coral Reef Conservation Program
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
CoRIS Discovery Thesaurus
  • Numeric Data Sets > Water Level
  • Numeric Data Sets > Water Quality
CoRIS Theme Thesaurus
  • EARTH SCIENCE > Hydrosphere > Surface Water > Discharge/Flow
  • EARTH SCIENCE > Hydrosphere > Water Quality
  • EARTH SCIENCE > Terrestrial Hydrosphere > Water Quality/Water Chemistry > Suspended Solids
Global Change Master Directory (GCMD) Science Keywords
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords Provider Instruments
  • Pressure Transducer
  • Sediment Concentration Autosampler
Place keywords NODC SEA AREA NAMES THESAURUS CoRIS Place Thesaurus
  • COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > American Samoa (14S170W0000)
  • COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Tutuila Island (14S170W0016)
  • COUNTRY/TERRITORY > United States of America > American Samoa > Tutuila Island > Faga'alu (14S170W0005)
  • OCEAN BASIN > Pacific Ocean > American Samoa > American Samoa (14S170W0000)
  • OCEAN BASIN > Pacific Ocean > American Samoa > Tutuila Island (14S170W0016)
  • OCEAN BASIN > Pacific Ocean > Pago Pago Harbor > Faga'alu (14S170W0005)
Global Change Master Directory (GCMD) Location Keywords
Project keywords NODC PROJECT NAMES THESAURUS CRCP Project
  • 31211
  • FY18/FY19/FY20/FY21/FY22 National Fish and Wildlife Foundation - Coral Fund Competitive Grants (International)
Grant Award Numbers
  • NA10NOS4630131
  • NA14NOS4820143
  • NOAA-NOS-OCRM-2013-2003459
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Biggs, Trent; Messina, Alex; Holst-Rice, Susie; Curtis, Meagan (2019). Stream discharge, turbidity, and suspended sediment concentration in Faga'alu watershed, American Samoa from 2012-01-12 to 2016-11-15 (NCEI Accession 0191818). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://accession.nodc.noaa.gov/0191818. Accessed [date].
Access Constraints
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: dataset
Processing Steps
  • 2019-07-27T03:36:13Z - NCEI Accession 0191818 v1.1 was published.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: Stream discharge (calculated); Units: cubic meters per second; Observation Category: in situ; Sampling Instrument: Pressure transducer; Sampling and Analyzing Method: Pressure transducer readings of water level (Stage) were recorded every 5 or 15 minutes. Discharge calculated using a rating curve according to Messina and Biggs, 2016, Journal of Hydrology v 538 pp 726-742.; Data Quality Method: Rating curves were developed using observed stage and discharge to calibrate a hydraulic model (see Messina and Biggs 2016). Discharge values were checked against the site downstream (F3) using double mass curve analysis. The stage was adjusted manually (field "Stage.corr.cm") where needed to maintain consistency in the double mass curves..
  • Parameter or Variable: Turbidity (measured); Units: NTU; Observation Category: in situ; Sampling Instrument: Turbidity Meter; Sampling and Analyzing Method: Turbidity meters were installed at F1, F2 (2016 only), and F3 and recorded turbidity every 5-15 minutes. Several different models were used over the course of the project; see Messina and Biggs 2016 for details.; Data Quality Method: Turbidity meters were checked against standards at the beginning and end of deployment periods, and sent to the manufacturer for recalibration at the end of each campaign. Quality flags are "O" = outlier; "B"=bad value, unknown reason", "S"=sunlight artifact..
  • Parameter or Variable: Suspended sediment concentration (measured); Units: mg/L; Observation Category: in situ; Sampling Instrument: Manual grab or autosampler; Sampling and Analyzing Method: Water samples were collected using manual grab with a 1L wide-mouthed bottle, or with an autosampler. SSC was determined using gravimetric methods (see Messina 2016 and Messina and Biggs 2016 for details).; Data Quality Method: Duplicates were run on some samples to check for consistency..
Acquisition Information (collection)
Instrument
  • bottle
  • pressure sensors
  • Turbidity Meter
Last Modified: 2020-03-02T01:54:12Z
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