Marine Optical Buoy (MOBY) Ancillary Files
MOBY Deployment Files
This dataset contains the Marine Optical Buoy (MOBY) ancillary (deployment) files. These are HTML pages which have auxiliary data associated with each data set in the deployment. The data file formats are in text (ASCII) and HTML. The images are in JPG and PNG formats; they are not compressed. The time period covered by the MOBY ancillary (deployment) dataset begins at 1997-07-29. The project is ongoing and continuous. More data is added as updates to the data record become available.
MOBY is an autonomous radiometric buoy stationed in the waters off Lanai, Hawaii. MOBY has been the primary in-water oceanic observatory for the vicarious calibration of U. S. satellite ocean color sensors since 1997. The MOBY project data set has been evaluated by NOAA, NASA, and NIST for its accuracy and precision numerous times since 1997. The MOBY measurements are calibrated with SI standards every per and post deployments to ensure the data sets continue to provide accurate and precise data. The satellite ocean color vicarious calibration community uses the data to validate the satellite measured radiance.
MOBY was designed to measure sunlight incidents both on and scattered out of the ocean. These measurements are provided in near real-time for the vicarious calibration procedures conducted by ocean color scientists. It is a NOAA-funded project that provides for the vicarious calibration of ocean color satellites such as SeaWiFS and MODIS. Currently, MOBY provides data to JPSS VIIRS and to non-NOAA agency partners, including Copernicus Sentinel 3A and 3B.
MOBY is an autonomous radiometric buoy stationed in the waters off Lanai, Hawaii. MOBY has been the primary in-water oceanic observatory for the vicarious calibration of U. S. satellite ocean color sensors since 1997. The MOBY project data set has been evaluated by NOAA, NASA, and NIST for its accuracy and precision numerous times since 1997. The MOBY measurements are calibrated with SI standards every per and post deployments to ensure the data sets continue to provide accurate and precise data. The satellite ocean color vicarious calibration community uses the data to validate the satellite measured radiance.
MOBY was designed to measure sunlight incidents both on and scattered out of the ocean. These measurements are provided in near real-time for the vicarious calibration procedures conducted by ocean color scientists. It is a NOAA-funded project that provides for the vicarious calibration of ocean color satellites such as SeaWiFS and MODIS. Currently, MOBY provides data to JPSS VIIRS and to non-NOAA agency partners, including Copernicus Sentinel 3A and 3B.
- Cite as: NOAA MOBY Science Team (2023). Marine Optical Buoy (MOBY) Ancillary (deployment) Files from July 1997 to the present. [indicate subset used]. NOAA National Centers for Environmental Information. doi:TBD. [access date].
- gov.noaa.ncdc:C01692
- DSI 2077_01
C01692
Other Access |
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Distribution Formats |
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor | NOAA National Centers for Environmental Information
ncei.info@noaa.gov |
Dataset Point of Contact | Customer Service
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 301-713-3277 NODC.Services@noaa.gov |
Time Period | 1997-07-29 to Present (time interval: 1-month) |
Spatial Bounding Box Coordinates |
N: 20.50
S: 20.40
E: -157.1
W: -157.2
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Spatial Coverage Map |
General Documentation |
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Processing Documents |
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Associated Resources |
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Publication Dates |
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Data Presentation Form | Digital profile - vertical cross-section in digital form
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Dataset Progress Status | Ongoing - data is continually being updated |
Data Update Frequency | Quarterly |
Purpose | The satellite ocean color vicarious calibration community will use the data to validate the satellite measured radiance. |
Dataset Citation |
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Cited Authors |
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Publishers |
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Theme keywords | Global Change Master Directory (GCMD) Science Keywords
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Data Center keywords | Global Change Master Directory (GCMD) Data Center Keywords
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Platform keywords | Global Change Master Directory (GCMD) Platform Keywords
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Instrument keywords | Global Change Master Directory (GCMD) Instrument Keywords
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Place keywords | Global Change Master Directory (GCMD) Location Keywords
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Stratum keywords | Global Change Master Directory (GCMD) Location Keywords
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Use Constraints |
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Access Constraints |
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Fees |
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Lineage Statement | NOAA MOBY Science Team, which includes the following organizations: DOC/NOAA/NESDIS/STAR CoastWatch (funding, project management, data distribution, data management, and data archive); University of Miami (UM) (principal Investigator, science, analysis, instrument development, data quality, and grant management); San José State University, Moss Landing Marine Lab (instrument development, instrument operations and maintenance, data quality, data processing, and preparation); and, NIST (analysis, calibration, and standard traceability). |
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Processing Steps |
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Processing Environment | The radiance standards for MOBY are two integrating spheres with calibrations based on standards traceable to the National Institute of Standards and Technology (NIST). For irradiance, the MOBY project uses standard lamps that are routinely recalibrated at NIST. Wavelength calibrations are conducted with a series of emission lines observed from a set of low pressure lamps. Each MOBY instrument views these standards before and after its deployment to provide system responses (calibration coefficients). During each deployment, the stability of the MOBY spectrographs and internal optics are monitored using three internal reference sources. In addition, the collection optics for the instrument are cleaned and checked on a monthly basis while the buoy is deployed. As part of collaboration with NIST, annual radiometric comparisons are made at the MOBY calibration facility. NIST personnel use transfer radiometers and integrating spheres to validate (verify) the accuracy of the MOBY calibration sources. |
Processing Documents |
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Processing Steps |
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Last Modified: 2023-08-24
For questions about the information on this page, please email: ncei.info@noaa.gov