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OAS accession Detail for 0112820
<< previous | |revision: 9 |
accessions_id: | 0112820 | archive |
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Title: | Sea Ice data from ARSV Laurence M. Gould and RVIB Nathaniel B. Palmer cruises LMG0106, LMG0205, NBP0104, and NBP0204 in the Southern Ocean from 2001-2002 (SOGLOBEC project; Sea Ice Microbes project) (NCEI Accession 0112820) |
Abstract: | This dataset contains meteorological and physical data collected on ARSV Laurence M. Gould and RVIB Nathaniel B. Palmer during cruises LMG0106, LMG0205, NBP0104, and NBP0204 in the Indian Ocean, South Atlantic Ocean, South Pacific Ocean, and Southern Ocean from 2001-07-27 to 2002-09-15. These data include air temperature, cloud cover, visibility, water temperature, wind_dir, and wind_speed_kts. These data were collected by Dr Chris H. Fritsen of Desert Research Institute as part of the "GLOBEC: Sea Ice Microbial Communities (Sea Ice Microbes)" and "U.S. GLOBEC Southern Ocean (SOGLOBEC)" projects and "U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)" program. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2023-01-23. The following is the text of the dataset description provided by BCO-DMO: Sea Ice data from Southern Ocean cruises Dataset Description: Sea Ice Observations during Southern Ocean GLOBEC Sea ice observations on the Southern Ocean GLOBEC cruises were conducted according to standardized protocols developed and utilized by members of the Antarctic Sea Ice Processes and Climate working group (co-sponsored by SCAR and GlOCHANT). Related datasets: ice properties, ice thickness, snow pits More details regarding methodology can be found or by contacting Dr. C.H. Fritsen. |
Date received: | 20230123 |
Start date: | 20010727 |
End date: | 20020915 |
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West boundary: | -76.85 |
East boundary: | 63.917 |
North boundary: | 67 |
South boundary: | -69.25 |
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Submitting institution: | Biological and Chemical Oceanography Data Management Office |
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Supplementary information: | OPEN WATER (OpnWtrCode) : Code --- Description 0 --- No openings 1 --- Small cracks 2 --- Very narrow breaks, 50m 50m 50m 3 --- Narrow breaks, 50-200 m 4 --- Wide breaks, 200-500 m 5 --- Very wide breaks, >500 m 6 --- Lead/coastal lead 7 --- Polynya/coastal polynya 8 --- Water broken only by small scattered floes 9 --- Open sea ICE CONCn (IceCon): to be expressed in tenths. ICE TYPE (ITypeCode) : Code --- Description 10 --- Frazil 11 --- Shuga 12 --- Grease 20 -- Nilas 30 --- Pancakes 40 --- Young grey ice, 0.1-0.15 m 50 --- Young grey-white ice, 0.15-0.3 m 60 --- First year, 0.3-0.7 m 70 --- First year, 0.7-1.2 m 80 --- First year, >1.2 m 85 --- Multiyear floes 90 --- Brash 95 --- Fast ice SEA ICE (IThkns) AND SNOWTHICKNESS (SnoThkns): to be expressed in centimetres. FLOE SIZE (FloSzCode): Code --- Description 100 --- Pancakes 200 --- New sheet ice 300 --- Brash/broken ice 400 --- Cake ice, 20 20 20 500 --- Small floes, 20-100 m 600 --- Medium floes, 100-500 m 700 --- Large floes, 500-2000 m 800 --- Vast floes, >2000 m SNOW TYPE (SnoTypCode): Code --- Description 0 --- No snow observation 1 --- No snow, no ice or brash 2 --- Cold new snow, 3 --- Cold old snow 4 --- Cold wind-packed snow 5 --- New melting snow (wet new snow) 6 --- Old melting snow 7 --- Glaze 8 --- Melt slush 9 --- Melt puddles 10 --- Saturated snow (waves) 11 --- Sastrugi TOPOGRAPHY (TopoCode): Code Description 100 Level ice 200 Rafted pancakes 300 Cemented pancakes 400 Finger rafting 5xy New, unconsolidated ridges (no snow) 6xy New ridges filled with snow or a snow cover 7xy Consolidated ridges (no weathering) 8xy Older, weathered ridges x values Areal Coverage 0 0-10% 1 10-20% 2 20-30% 3 30-40% 4 40-50% 5 50-60% 6 60-70% 7 70-80% 8 80-90% 9 90-100% y values Avg. Sail Height 1 0.5 m 2 1.0 m 3 1.5 m 4 2.0 m 5 3.0 m 6 4.0 m 7 5.0 m The following weather observation codes and descriptions are from the "National Weather Service Observing Handbook No. 1", Marine Surface Weather Observations, August 1995. U.S. Department of Commerce, Silver Spring, MD. VISIBILITY (visib): Code --- Visibility in m/km 90 --- less than 50 m 91 --- 50 but less than 200 m 92 --- 200 but less than 500 m 93 --- 500 but less than 1000 m 94 --- > 1 but less than 2 km 95 --- > 2 but less than 4 km 96 --- > 4 but less than 10 km 97 --- > 10 but less than 20 km 98 --- > 20 but less than 50 km 99 --- > 50 km or more TOTAL CLOUD COVER (cldcvr): to be expressed in eighths; -1 = Sky obscured by fog, snow or other met. phenom. PRESENT WEATHER (wx): Code Description Change of sky during past hour 0 Cloud development not observable 1 Clouds dissolving or becoming less developed 2 State of the sky on the whole unchanged 3 Clouds generally forming or developing Phenomena in past hour but not at time of obs 28 Fog (in past hour, but not at time of obs.) 36 Slight or moderate drifting snow, low (below eye level) 37 Heavy drifting snow, low (below eye level) 38 Slight or moderate drifting snow, high (above eye level) 39 Heavy drifting snow, high (above eye level) Fog at the time of observation 41 Sky visible Fog in patches (visibility may be greater than 1/2 nm) 42 Sky visible Fog has become thinner in past hour 43 Sky invisible For has become thinner in past hour 44 Sky visible Fog, no change in past hour 45 Sky invisible Fog, no change in past hour 46 Sky visible Fog has begun or thickened in past hour 47 Sky invisible Fog has begun or thickened in past hour Drizzle 50 Intermittent Slight drizzle 56 Slight Freezing drizzle Rain (Not falling as showers) 60 Intermittent Slight rain Solid precipitation not falling as showers 70 Intermittent Slight snow in flakes 71 Continuous Slight snow in flakes 72 Intermittent Moderate snow in flakes 73 Continuous Moderate snow in flakes 74 Intermittent Heavy snow in flakes 75 Continuous Heavy snow in flakes 76 Diamond dust (with or without fog) 77 Snow grains (with or without fog) Solid precipitation in showers 85 Slight Shower of snow 86 Moderate or heavy Shower of snow Acquisition Description: Sea ice observations on the Southern Ocean GLOBEC cruises were conducted according to standardized protocols developed and utilized by members of the Antarctic Sea Ice Processes and Climate working group (co-sponsored by SCAR and GlOCHANT). Routine observations of sea ice and snow characteristics were routinely collected on an hourly basis while the L.M. Gould was actively steaming throughout the cruise. These observations began on 26 July 2001 and continued through 27 August 2001. The observational protocol followed during the cruise was the protocol that is formally endorsed by the SCAR ASPeCt (Antarctic Sea ice Processes and Climate) program for observing sea ice characteristics. In short, our program (combined efforts of BG-244 as well as OG-241) was able to gather the information that will be used to characterize the predominate types of ice in the region according to parameters, such as areal coverage, floe size, ice thickness, snow type, snow thickness and deformation. In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number. |
Availability date: | |
Metadata version: | 9 |
Keydate: | 2013-09-09 13:45:22+00 |
Editdate: | 2023-10-17 21:14:34+00 |