gov.noaa.nodc:0012901
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utf8
dataset
NOAA National Centers for Environmental Information
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NOAA Contact Information
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information
custodian
2024-03-02T15:19:03Z
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
NODC Standard Format Water Physics and Chemistry (F004) Data, 1949-1985 (NCEI Accession 0012901)
2007-01-25
publication
2023-07-25
revision
NOAA National Centers for Environmental Information
gov.noaa.nodc:0012901
NCEI Archive Management System
0012901
NOAA National Centers for Environmental Information
ncei.info@noaa.gov
https://www.ncei.noaa.gov/contact
HTTPS
NCEI Contact Information
Information for contacts at NCEI.
information
publisher
US DOC; NOAA; NESDIS; National Oceanographic Data Center (NODC)
NCEI.Info@noaa.gov
https://www.nodc.noaa.gov/
HTTPS
US National Oceanographic Data Center website
Institution web page
information
resourceProvider
Science Applications International Corporation - Oak Ridge, TN
contributor
Battelle Memorial Institute; Pacific Northwest National Laboratory (PNNL)
http://www.pnl.gov/
HTTP
Battelle Memorial Institute; Pacific Northwest National Laboratory website
Institution web page
information
contributor
US DOI; Fish and Wildlife Service (FWS)
contributor
University of Delaware; College of Earth, Ocean, and Environment; School of Marine Science and Policy
http://www.ceoe.udel.edu/schools-departments/school-of-marine-science-and-policy
HTTP
University of Delaware; College of Earth, Ocean, and Environment; School of Marine Science and Policy website
Institution web page
information
contributor
Edgerton, Germeshausen and Grier, Inc. (EG&G)
contributor
US DOC; NOAA; National Ocean Service (NOS)
contributor
US DOC; NOAA; National Ocean Service - Rockville, MD
contributor
State University of New York at Stony Brook (SBU)
https://www.stonybrook.edu/
HTTPS
Stony Brook University website
Institution web page
information
contributor
Southern Maine Vocational Technical Institute (SMVTI)
https://www.smccme.edu/
HTTPS
Southern Maine Vocational Technical Institute website
Institution web page
information
contributor
Energy Resources Company, Inc.
contributor
Brookhaven National Laboratory (BNL)
contributor
US Navy; Naval Oceanographic Office (NAVOCEANO)
https://www.metoc.navy.mil/navo/navo.html
HTTPS
US Navy; Naval Oceanographic Office website
Institution web page
information
contributor
US DOC; NOAA; OAR; Atlantic Oceanographic and Meteorological Laboratory (AOML)
https://www.aoml.noaa.gov/
HTTPS
NOAA Atlantic Oceanographic and Meteorological Laboratory website
Institution web page
information
contributor
US DOC; NOAA; National Marine Fisheries Service (NMFS)
https://www.fisheries.noaa.gov/
HTTPS
NOAA Fisheries website
Institution web page
information
contributor
Science Applications International Corporation - Raleigh, NC
http://www.saic.com
HTTP
Science Applications International Corporation - Raleigh, NC website
Institution web page
information
contributor
Dames and Moore, Inc. - Bethesda
contributor
Southwest Research Institute (SwRI)
contributor
Nassau County Department of Health; Bureau of Water Surveillance
contributor
Johns Hopkins University; Chesapeake Bay Institute
contributor
US DOC; NOAA; NWS; National Data Buoy Center (NDBC)
https://www.ndbc.noaa.gov/
HTTPS
NOAA National Data Buoy Center website
Institution web page
information
contributor
LGL Ltd.; Alaska Research Associates, Inc.
contributor
Coastal Ecosystems Management, Inc.
contributor
Duke University
contributor
Rutgers University; Oyster Research Laboratory
contributor
US DOI; Fish and Wildlife Service - Eastern Pennsylvania Region
contributor
US DOC; NOAA; NMFS; Cooperative Oxford Laboratory
contributor
Stanford University; Hopkins Marine Station
contributor
University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS)
http://www.rsmas.miami.edu
HTTP
Rosenstiel School of Marine and Atmospheric Science website
Institution web page
information
contributor
McNeese State University
contributor
United States Coast Guard (USCG)
contributor
University of Rhode Island; Graduate School of Oceanography (GSO)
contributor
Woods Hole Oceanographic Institution (WHOI)
http://www.whoi.edu
HTTP
Woods Hole Oceanographic Institution website
Institution web page
information
contributor
US DOC; NOAA; NMFS; Northeast Fisheries Science Center; Narragansett Laboratory
contributor
US DOC; NOAA; NMFS; Southeast Fisheries Science Center; Beaufort, NC Laboratory
contributor
US EPA; Meteorology and Assessment Division - Triangle Park, NC (EPA - Triangle Park, NC)
contributor
TerEco Corporation
contributor
Texas A&M University (TAMU)
contributor
University of Washington (UW)
contributor
Skidaway Institute of Oceanography (SkIO)
http://www.skio.uga.edu/
HTTP
Skidaway Institute of Oceanography website
Institution web page
information
contributor
Moss Landing Marine Laboratories (CALSTATE-MLML)
http://www.mlml.calstate.edu/
HTTP
Moss Landing website
Institution web page
information
contributor
Virginia Institute of Marine Science (VIMS)
contributor
US National Oceanographic Data Center
NCEI.Info@noaa.gov
https://www.nodc.noaa.gov/
HTTPS
US National Oceanographic Data Center website
Institution web page
information
author
tableDigital
This dataset contains data from measurements and analyses of physical and chemical characteristics of the water column. Chemical parameters that may be recorded are salinity, pH and concentration of oxygen, ammonia, nitrate, phosphate, chlorophyll and suspended solids. Physical parameters that may be recorded include temperature, density (sigma-t), transmissivity and current velocity (east-west and north-south components). Cruise and station information may include environmental conditions of the study site at the time of observation. Data are very sparse prior to 1951.
Data has been processed by NODC to the NODC standard Water Physics and Chemistry (F004) format.
The F004 format is used for data from measurements and analyses of physical and chemical characteristics of the water column. Among chemical parameters that may be recorded are salinity, pH, and concentration of oxygen, ammonia, nitrate, phosphate, chlorophyll, and suspended solids. Physical parameters that may be recorded include temperature, density (sigma-t), transmissivity, and current velocity (east-west and north-south components). Cruise and station information, including environmental conditions of the study site at the time of observations, is also included.
This dataset is available to the public for a wide variety of uses including scientific research and analysis.
completed
historicalArchive
NOAA National Centers for Environmental Information
ncei.info@noaa.gov
https://www.ncei.noaa.gov/contact
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NCEI Contact Information
Information for contacts at NCEI.
information
pointOfContact
asNeeded
https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0012901
Preview graphic
PNG
0012901
NCEI ACCESSION NUMBER
1999-12-31
publication
AIR TEMPERATURE - DRY BULB
AIR TEMPERATURE - WET BULB
AMMONIA (NH3)
BAROMETRIC PRESSURE
BOTTOM TYPE
CHLOROPHYLL
cloud amount/frequency
cloud types
CURRENT METER - EAST-WEST COMPONENT (U)
CURRENT METER - NORTH-SOUTH COMPONENT (V)
LIGHT PENETRATION
LIGHT TRANSMISSION
NITRATE
NITRITE
OXYGEN
pH
phosphate
PRODUCTIVITY
redox potential (Eh)
SALINITY
SEA DIRECTION
SEA HEIGHT
Secchi depth
silicate
SOLIDS
SWELL DIRECTION
SWELL HEIGHT
turbidity
UREA
VISIBILITY
WEATHER
WIND DIRECTION
WIND SPEED
theme
NODC DATA TYPES THESAURUS
bottle
CTD
current meter
irradiance detector
multi-parameter water quality sensor
pH sensor
Secchi disk
visual estimate
visual observation
instrument
NODC INSTRUMENT TYPES THESAURUS
chemical
meteorological
physical
profile
water chemistry
theme
NODC OBSERVATION TYPES THESAURUS
Battelle Memorial Institute; Pacific Northwest National Laboratory
Brookhaven National Laboratory
Coastal Ecosystems Management, Inc.
Dames and Moore, Inc. - Bethesda
Duke University
Edgerton, Germeshausen and Grier, Inc.
Energy Resources Company, Inc.
Johns Hopkins University; Chesapeake Bay Institute
LGL Ltd.; Alaska Research Associates, Inc.
McNeese State University
Moss Landing Marine Laboratories
Nassau County Department of Health; Bureau of Water Surveillance
Rutgers University; Oyster Research Laboratory
Science Applications International Corporation - Oak Ridge, TN
Science Applications International Corporation - Raleigh, NC
Skidaway Institute of Oceanography
Southern Maine Vocational Technical Institute
Southwest Research Institute
Stanford University; Hopkins Marine Station
State University of New York at Stony Brook
TerEco Corporation
Texas A&M University
United States Coast Guard
University of Delaware; College of Earth, Ocean, and Environment; School of Marine Science and Policy
University of Miami Rosenstiel School of Marine and Atmospheric Science
University of Rhode Island; Graduate School of Oceanography
University of Washington
US DOC; NOAA; National Marine Fisheries Service
US DOC; NOAA; National Ocean Service
US DOC; NOAA; National Ocean Service - Rockville, MD
US DOC; NOAA; NMFS; Cooperative Oxford Laboratory
US DOC; NOAA; NMFS; Northeast Fisheries Science Center; Narragansett Laboratory
US DOC; NOAA; NMFS; Southeast Fisheries Science Center; Beaufort, NC Laboratory
US DOC; NOAA; NWS; National Data Buoy Center
US DOC; NOAA; OAR; Atlantic Oceanographic and Meteorological Laboratory
US DOI; Fish and Wildlife Service
US DOI; Fish and Wildlife Service - Eastern Pennsylvania Region
US EPA; Meteorology and Assessment Division - Triangle Park, NC
US Navy; Naval Oceanographic Office
Virginia Institute of Marine Science
Woods Hole Oceanographic Institution
dataCentre
NODC COLLECTING INSTITUTION NAMES THESAURUS
US DOC; NOAA; NESDIS; National Oceanographic Data Center
dataCentre
NODC SUBMITTING INSTITUTION NAMES THESAURUS
Coastal Waters of Southeast Alaska and British Columbia
Gulf of Mexico
New York Bight
North Atlantic Ocean
North Pacific Ocean
Northwestern Passages
place
NODC SEA AREA NAMES THESAURUS
oceanography
theme
WMO_CategoryCode
2012-09-15
publication
CWM/VIMS > Virginia Institute of Marine Science, College of William and Mary
DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce
DOC/NOAA/NMFS > National Marine Fisheries Service, NOAA, U.S. Department of Commerce
DOC/NOAA/NMFS/NEFSC > Northeast Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce
DOC/NOAA/NMFS/SEFSC > Southeast Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce
DOC/NOAA/NOS > National Ocean Service, NOAA, U.S. Department of Commerce
DOC/NOAA/NWS/NDBC > National Data Buoy Center, National Weather Service, NOAA, U.S. Department of Commerce
DOC/NOAA/OAR/AOML > Atlantic Oceanographic and Meteorological Laboratory, OAR, NOAA, U.S. Department of Commerce
DOD/USNAVY/NAVOCEANO > Naval Oceanographic Office, U.S. Navy, U.S. Department of Defense
DOE/BNL > Brookhaven National Laboratory, U. S. Department of Energy
DOI/USFWS > U.S. Fish and Wildlife Service, U.S. Department of the Interior
MLML > Moss Landing Marine Laboratories
SAIC > Science Applications International Corporation
SWRI > Southwest Research Institute
U-MIAMI/RSMAS > Rosenstiel School of Marine and Atmospheric Science, University of Miami
UGA/SkIO > Skidaway Institute of Oceanography, University of Georgia
URI/GSO > Graduate School of Oceanography, University of Rhode Island
WHOI > WOODS HOLE OCEANOGRAPHIC INSTITUTION
dataCentre
Global Change Master Directory (GCMD) Data Center Keywords
2023
revision
17
Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
Greenbelt
MD
https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
HTTPS
GCMD Keyword Forum Page
Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
information
custodian
EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE
EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > AIR TEMPERATURE
EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND DIRECTION
EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEED
EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD PROPERTIES > CLOUD FREQUENCY
EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD TYPES
EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > SUSPENDED SOLIDS
EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY
EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA
EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL
EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE
EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE
EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN
EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH
EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE
EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE
EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS
EARTH SCIENCE > OCEANS > OCEAN OPTICS
EARTH SCIENCE > OCEANS > OCEAN OPTICS > SECCHI DEPTH
EARTH SCIENCE > OCEANS > OCEAN OPTICS > TURBIDITY
EARTH SCIENCE > OCEANS > OCEAN WAVES > SWELLS
EARTH SCIENCE > OCEANS > OCEAN WAVES > WAVE HEIGHT
EARTH SCIENCE > OCEANS > OCEAN WAVES > WAVE SPEED/DIRECTION
EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY
theme
Global Change Master Directory (GCMD) Science Keywords
2023
revision
17
Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
Greenbelt
MD
https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
HTTPS
GCMD Keyword Forum Page
Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
information
custodian
CTD > Conductivity, Temperature, Depth
CURRENT METERS
PH METERS > PH METERS
SECCHI DISKS > SECCHI DISKS
VISUAL OBSERVATIONS > VISUAL OBSERVATIONS
instrument
Global Change Master Directory (GCMD) Instrument Keywords
2023
revision
17
Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
Greenbelt
MD
https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
HTTPS
GCMD Keyword Forum Page
Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
information
custodian
OCEAN > ARCTIC OCEAN
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO
OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN
place
Global Change Master Directory (GCMD) Location Keywords
2023
revision
17
Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
Greenbelt
MD
https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
HTTPS
GCMD Keyword Forum Page
Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
information
custodian
accessLevel: Public
otherRestrictions
Cite as: US National Oceanographic Data Center (2007). NODC Standard Format Water Physics and Chemistry (F004) Data, 1949-1985 (NCEI Accession 0012901). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0012901. Accessed [date].
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.
otherRestrictions
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.
US National Oceanographic Data Center (2023). NODC Standard Product: Documentation for NODC Standard File Formats and Related Codes, 1960 - 1996 (NCEI Accession 0189890). NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0189890.
2023-01-19
publication
NOAA National Centers for Environmental Information
gov.noaa.nodc:0189890
https://www.ncei.noaa.gov/archive/accession/0189890
HTTPS
https://www.ncei.noaa.gov/archive/accession/0189890
documentation
information
US National Oceanographic Data Center
NCEI.Info@noaa.gov
https://www.nodc.noaa.gov/
HTTPS
US National Oceanographic Data Center website
Institution web page
information
author
US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
publisher
documentDigital
crossReference
collection
eng; USA
utf8
environment
oceans
climatologyMeteorologyAtmosphere
-125.13
-68.47
24.61
70.18
1949-07-01
1985-12-12
The data in this accession is a compilation of data from multiple NODC accessions that were provided in this standard NODC format or were reformatted into this standard NODC format. Each of the original accessions that provided data for this collection are available upon request.
NOAA National Centers for Environmental Information
+1-301-713-3277
NCEI.Info@noaa.gov
pointOfContact
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.
Contact NCEI for other distribution options and instructions.
F004
MULDARS Water Physics and Chemistry Data Format (F004)
65.56
https://www.ncei.noaa.gov/archive/accession/0012901
HTTPS
Web browser
NCEI Dataset Landing Page
Navigate directly to the URL for a descriptive web page with download links.
information
https://www.ncei.noaa.gov/archive/accession/oas/12901
HTTPS
Web browser
Descriptive Information
Navigate directly to the URL for a descriptive web page with download links.
information
https://www.ncei.noaa.gov/archive/accession/download/12901
HTTPS
Web browser
HTTPS
Navigate directly to the URL for data access and direct download.
download
ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0010/0012901/
FTP
Any FTP client
FTP
These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).
download
dataset
NCEI Accession 0012901 v1.1 was published.
2007-01-25T13:08:52Z
NCEI Accession 0012901 v1.1
publication
https://www.ncei.noaa.gov/archive/accession/0012901/1.1
HTTPS
NCEI Accession 0012901 v1.1
published 2007-01-25T13:08:52Z
download
NCEI Accession 0012901 was revised and v1.2 was published.
Additional metadata files were received or created for this dataset. These updates were copied into the about/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
2023-07-25T19:52:24Z
NCEI Accession 0012901 v1.2
publication
https://www.ncei.noaa.gov/archive/accession/0012901/1.2
HTTPS
NCEI Accession 0012901 v1.2
published 2023-07-25T19:52:24Z
download
repository
NOAA National Centers for Environmental Information
NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
2015-04-22T00:00:00
asNeeded
Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.
NCEI Accession 0012901 was revised and a new version of the archival package was published. Updates to existing archival packages may provide additional files or replace obsolete files. The latest version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. Please see journal.txt in the /about directory for additional details on changes made.
NOAA National Centers for Environmental Information
custodian
bottle
bottle
any type of water bottle sampling device
Generic name for water collection device; usually used to determine temperature, salinity and provide water aliquots for measurement of a wide range of parameters; often referred to by a specific type of water sampling bottle, such as a Nansen or Niskin bottle.
CTD
CTD
Conductivity-Temperature-Depth probe
current meter
current meter
current meter
irradiance detector
irradiance detector
A device to measure light transmitted at various frequencies
multi-parameter water quality sensor
multi-parameter water quality sensor
used to measure temperature, salinity, dissolved oxygen, and other parameters
Instrument used to measure temperature, salinity, dissolved oxygen, and other parameters, often used to measure water quality parameters. Can be a hand-held instrument or a sonde for unattended monitoring. Often used in coastal water monitoring stations. YSI is the preeminent brand (as of 2024).
pH sensor
pH sensor
generic meter used to measure pH
Any of a class of instruments used to quantify pH in a water or other type of sample.
Secchi disk
Secchi disk
The Secchi disk (or Secchi disc), as created in 1865 by Angelo Secchi, is a plain white, circular disk 30 cm (12 in) in diameter used to measure water transparency or turbidity in bodies of water. The disc is mounted on a pole or line, and lowered slowly down in the water. The depth at which the disk is no longer visible is taken as a measure of the transparency of the water. This measure is known as the Secchi depth and is related to water turbidity. [Wikipedia, 2021-09-02]
visual estimate
visual estimate
not an instrument - maybe an observation type
visual observation
visual observation
not an instrument - maybe an observation type