/* DATA DESCRIPTION: Citation: García-Herrera, Ricardo; Können, Gunther P; Wheeler, Dennis A; Prieto, Maria del Rosario; Jones, Philip D; Koek, Frits B (2010): Meteorological observations during MEDUSA cruise from St. Thomas to Barbados started at 1792-03-05. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.750661, In: Jones, Philip D; Wheeler, Dennis A; Können, Gunther P; Koek, Frits B; Prieto, Maria del Rosario; García-Herrera, Ricardo (2007): Climatological observations from ship logbooks between 1750 and 1854 (release 2.1). PANGAEA, https://doi.org/10.1594/PANGAEA.611088 Related to: García-Herrera, Ricardo; Können, Gunther P; Wheeler, Dennis A; Prieto, Maria del Rosario; Jones, Philip D; Koek, Frits B (2005): CLIWOC: A Climatological Database for the World's Oceans 1750–1854 (and 10 more publications about CLIWOC results in the same volume). Climatic Change, 73(1-2), 1-12ff, https://doi.org/10.1007/s10584-005-6952-6 Project(s): Climatological Database for the Worlds Oceans: 1750-1854 (CLIWOC) (URI: https://en.wikipedia.org/wiki/CLIWOC) Funding: Fifth Framework Programme (FP5), grant/award no. EVK2-CT-2000-00090: Climatological Database for the Worlds Oceans: 1750-1854 (URI: https://cordis.europa.eu/project/id/EVK2-CT-2000-00090) Coverage: MEDIAN LATITUDE: -0.763929 * MEDIAN LONGITUDE: -22.756786 * SOUTH-BOUND LATITUDE: -8.020000 * WEST-BOUND LONGITUDE: -55.900000 * NORTH-BOUND LATITUDE: 13.030000 * EAST-BOUND LONGITUDE: 6.300000 DATE/TIME START: 1792-03-05T12:00:00 * DATE/TIME END: 1792-04-03T16:00:00 Event(s): Medusa_17920305_NMM_ADM/L/M109 * LATITUDE START: -0.500000 * LONGITUDE START: 6.210000 * LATITUDE END: 14.850000 * LONGITUDE END: -59.680000 * DATE/TIME START: 1792-03-05T00:00:00 * DATE/TIME END: 1792-04-03T00:00:00 * CAMPAIGN: Cliwoc_cruise * METHOD/DEVICE: Underway cruise track measurements (CT) * COMMENT: Ship: Medusa (4th Rate Frigate), Voyage: St Thomas - Barbados, 1st Observer: John N Inglefield (Captain), 2nd Observer: Barrington Mansfield (2nd Officer/Lieutenant), Company: Royal Navy, Other ship information: 50G 910BM Parameter(s): DATE/TIME (Date/Time) * GEOCODE LATITUDE (Latitude) * GEOCODE LONGITUDE (Longitude) * GEOCODE Wind direction [deg] (dd) * COMMENT: Wind direction (from which the wind is blowing) in whole degrees from: 1-360; 361 = calm, 362 = variable. It is not clear from many logbook entries whether the wind direction has been corrected for the magnetic variation (or declination). To avoid any misunderstanding, all winds from reports that included a valid position in the period 1750-1854 were corrected. All other wind directions are given without being corrected. Wind speed [m/s] (ff) * COMMENT: calculated from the descriptive terms of wind force given in the observations Landmark (Landmark) * COMMENT: Name of first landmark Bearing (Bearing) * COMMENT: Bearing of the first landmark Distance to landmark [arbitrary units] (Distance) * COMMENT: Distance to the first landmark Course (Course) * COMMENT: Course of the ship during the past 24 hours Distance [arbitrary units] (Distance) * COMMENT: Distance travelled during the previous 24 hours Declination [deg] (Decl) * COMMENT: It is generally accepted by the CLIWOC team that the wind directions, reported by the ships officers, were relative to the magnetic North direction. Navigators were well aware of the difference between the true and magnetic north direction, but the compasses (we assumed that the bearing-compasses were mostly used for determining the wind direction) were not always adjusted. Therefore the wind direction has to be corrected. The magnetic declination (or variation, as it is known on board ships) is given for the whole CLIWOC period (1750-1850) for every 5x5 degree square. The number was added to the wind direction to get the true wind direction. Wind direction description (Wind dir descr) * COMMENT: All reported wind directions on this day. The wind direction is the direction that points to where the wind comes from. Wind force description (Wind force descr) * COMMENT: All reported wind forces on this day Present weather (ww) * COMMENT: Weather description Precipitation description (Precip descr) Clearness (Clearness) Gusts (Gusts) * COMMENT: 1 If wind gusts are reported Precipitation/Rain (Rain) * COMMENT: 1 If rain was reported Fog (Fog) * COMMENT: 1 If fog was reported Snow type (Snow) * COMMENT: 1 If snow was reported Thunder (Thunder) * COMMENT: 1 If thunder and or lightning was reported Hail (Hail) * COMMENT: 1 If hail was reported Sea ice (Sea ice) * COMMENT: 1 If sea-ice or icebergs were reported Identification (ID) * COMMENT: CLIWOC 2.1 line number License: Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/) Size: 528 data points */ Date/Time Latitude Longitude dd [deg] (Wind direction (from which th...) ff [m/s] (calculated from the descripti...) Landmark (Name of first landmark) Bearing (Bearing of the first landmark) Distance [arbitrary units] (Distance to the first landmark) Course (Course of the ship during the...) Distance [arbitrary units] (Distance travelled during the...) Decl [deg] (It is generally accepted by t...) Wind dir descr (All reported wind directions ...) Wind force descr (All reported wind forces on t...) ww (Weather description) Precip descr Clearness Gusts (1 If wind gusts are reported) Rain (1 If rain was reported) Fog (1 If fog was reported) Snow (1 If snow was reported) Thunder (1 If thunder and or lightning...) Hail (1 If hail was reported) Sea ice (1 If sea-ice or icebergs were...) ID (CLIWOC 2.1 line number) 1792-03-05T12:00 0.27 6.30 116 ST THOMAS S57E 12 N57W 37.00 -19 SW, SE SQUALLY 0 0 0 0 0 0 0 163887 1792-03-06T12:00 -1.00 5.53 206 12.3 ANNABONA S13W 9 S31W 88.00 -19 NE, SW FIRST PART MODERATE, MIDDLE SQUALLY, LATTER STRONG BREEZES AM TORNADO AM RAIN CLOUDY 0 1 0 0 1 0 0 163888 1792-03-07T12:00 -1.85 4.50 172 9.3 ASCENSION S72W 398 S40W 167.00 -19 SBW FRESH BREEZES RAIN AT TIMES 0 1 0 0 0 0 0 163889 1792-03-08T12:00 -2.40 2.17 172 6.7 ASCENSION S71W 348 S77W 144.00 -19 SBW MODERATE BREEZES CLOUDY 0 0 0 0 0 0 0 163890 1792-03-09T12:00 -2.90 0.17 161 6.7 ASCENSION S71W 306 S76W 124.00 -19 S MODERATE BREEZES CLEAR 0 0 0 0 0 0 0 163891 1792-03-10T12:00 -3.72 -1.60 161 9.3 ASCENSION S71W 267 S65W 116.00 -19 S FRESH BREEZES CLEAR 0 0 0 0 0 0 0 163892 1792-03-11T12:00 -5.48 -3.25 118 6.7 ASCENSION S77W 224 S43W 145.00 -17 SSE, SE FRESH BREEZES, AM SQUALLY, MODERATE BREEZES CLEAR, AM CLOUDY 0 0 0 0 0 0 0 163893 1792-03-12T12:00 -7.33 -5.90 141 9.3 ASCENSION S86W 169 S55W 189.00 -17 SSE FRESH BREEZES CLEAR 0 0 0 0 0 0 0 163894 1792-03-13T13:00 -7.95 -8.72 166 6.7 ASCENSION W 113 S78W 173.00 -14 SBE, S FRESH BREEZES, AM MODERATE BREEZES CLEAR 0 0 0 0 0 0 0 163895 1792-03-14T13:00 -8.02 -11.98 155 6.7 ASCENSION N88W 50 S88W 187.00 -14 SBE MODERATE BREEZES CLEAR 0 0 0 0 0 0 0 163896 1792-03-17T13:00 -7.38 -15.77 100 9.3 ST PAULS N53W 274 N68W 90.00 -13 SEBE, ESE FRESH BREEZES 0 0 0 0 0 0 0 163897 1792-03-18T13:00 -6.05 -18.00 136 6.7 HERDINAND NOROHA N82W 294 N59W 156.00 -10 SEBS MODERATE BREEZES CLOUDY 0 0 0 0 0 0 0 163898 1792-03-19T13:00 -4.85 -20.00 114 6.7 HERDINAND NOROHA N85:51W 253 N59W 140.00 -10 SEBE MODERATE BREEZES CLOUDY 0 0 0 0 0 0 0 163899 1792-03-20T13:00 -4.50 -22.47 125 2.6 HERDINAND NOROHA N88W 205 N82W 150.00 -10 SE LIGHT BREEZES FAIR 0 0 0 0 0 0 0 163900 1792-03-21T14:00 -4.20 -24.60 128 6.7 HERDINAND NOROHA N89W 161 N82W 129.00 -7 SE MODERATE CLOUDY 0 0 0 0 0 0 0 163901 1792-03-22T14:00 -4.02 -26.45 151 2.6 HERDINAND NOROHA N89W 124 N85W 111.00 -7 SSE LIGHT BREEZES CLEAR 0 0 0 0 0 0 0 163902 1792-03-23T14:00 -3.78 -29.07 130 6.7 HERDINAND NOROHA S87:35W 71 N85W 156.00 -5 S, SE MODERATE BREEZES CLOUDY 0 0 0 0 0 0 0 163903 1792-03-24T14:00 -2.98 -31.80 186 6.7 HERDINAND NOROHA S41W 25 N79W 326.00 -5 S, SBW MODERATE BREEZES CLOUDY 0 0 0 0 0 0 0 163904 1792-03-25T14:00 -1.50 -33.47 132 6.7 BARBADOS N60:43W 596 N48W 135.00 -3 E, EBN, SE MODERATE BREEZES CLOUDY 0 0 0 0 0 0 0 163905 1792-03-26T14:00 0.30 -35.33 110 6.7 BARBADOS N62W 545 N46W 156.00 -3 VARIABLE, NE, ESE MODERATE BREEZES CLOUDY 0 0 0 0 0 0 0 163906 1792-03-27T14:00 1.18 -36.97 42 BARBADOS N62W 508 N52W 266.00 -3 VARIABLE, E, ESE, NE VARIABLE RAIN 0 1 0 0 0 0 0 163907 1792-03-28T15:00 2.60 -38.38 88 BARBADOS N63:32W 470 N45W 120.00 -2 ESE, EBN, E LIGHT BREEZES, NOON SQUALLY CLOUDY 0 0 0 0 0 0 0 163908 1792-03-29T15:00 4.40 -40.72 362 BARBADOS N65W 413 N49W 269.00 -2 ESE, NE, VARIABLE SQUALLY HEAVY RAIN 0 1 0 0 0 0 0 163909 1792-03-30T15:00 6.37 -44.00 34 9.3 BARBADOS N66W 337 N59W 230.00 0 NEBN FRESH BREEZES CLOUDY 0 0 0 0 0 0 0 163910 1792-03-31T15:00 8.27 -47.50 69 9.3 BARBADOS N68W 258 N61W 239.00 1 NE, ENE FRESH BREEZES CLOUDY 0 0 0 0 0 0 0 163911 1792-04-01T15:00 10.08 -50.68 57 9.3 BARBADOS N71W 186 N60W 218.00 1 NEBE FRESH BREEZES HAZY 0 0 0 0 0 0 0 163912 1792-04-02T16:00 12.02 -53.30 116 6.7 BARBADOS N80W 126 N53W 194.00 3 ESE MODERATE BREEZES CLEAR 0 0 0 0 0 0 0 163913 1792-04-03T16:00 13.03 -55.90 114 6.7 BARBADOS N89W 76 N68W 164.00 1 ESE MODERATE BREEZES CLEAR 0 0 0 0 0 0 0 163914