/* 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 CHATHAM cruise from Madeira to Antigua started at 1772-07-07. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747882, 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: 22.277895 * MEDIAN LONGITUDE: -35.401579 * SOUTH-BOUND LATITUDE: 16.580000 * WEST-BOUND LONGITUDE: -57.220000 * NORTH-BOUND LATITUDE: 29.670000 * EAST-BOUND LONGITUDE: -19.300000 DATE/TIME START: 1772-07-07T00:00:00 * DATE/TIME END: 1772-07-27T16:00:00 Event(s): Chatham_17720707_NMM_ADM/L/C126 * LATITUDE START: 32.130000 * LONGITUDE START: -16.570000 * LATITUDE END: 17.000000 * LONGITUDE END: -60.500000 * DATE/TIME START: 1772-07-07T00:00:00 * DATE/TIME END: 1772-07-27T00:00:00 * CAMPAIGN: Cliwoc_cruise * METHOD/DEVICE: Underway cruise track measurements (CT) * COMMENT: Ship: Chatham (4th Rate Frigate), Voyage: Madeira - Antigua, 1st Observer: Charles Thompson (Captain), 2nd Observer: Thomas Dumeresy (2nd Officer/Lieutenant), Company: Royal Navy, Other ship information: 50G 1055BM 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 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: 372 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...) 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) 1772-07-07T00:00 30.77 45 1.0 MADEIRA WEST NBE 14 S27W 132.00 NE LIGHT AIRS CLOUDY 0 0 0 0 0 0 0 41106 1772-07-08T13:00 29.67 -19.30 345 1.0 MADEIRA WEST N33E 73 S43W 90.00 -15 N LIGHT AIRS CLOUDY 0 0 0 0 0 0 0 41107 1772-07-09T13:00 28.52 -20.62 8 9.3 MADEIRA WEST N36E 104 S43W 94.00 -15 NNE FRESH BREEZES CLEAR 0 0 0 0 0 0 0 41108 1772-07-10T13:00 27.67 -21.97 41 2.6 MADEIRA WEST S43W 88.00 -15 NEBE LIGHT BREEZES CLOUDY 0 0 0 0 0 0 0 41109 1772-07-11T13:00 27.67 -21.97 345 2.6 MADEIRA WEST S55W 88.00 -15 N LIGHT BREEZES CLOUDY 0 0 0 0 0 0 0 41110 1772-07-12T14:00 26.63 -23.64 56 2.6 MADEIRA WEST NE1/4N 164 S56W 106.00 -12 ENE LIGHT BREEZES CLOUDY 0 0 0 0 0 0 0 41111 1772-07-13T14:00 25.57 -25.45 56 6.7 MADEIRA WEST NE 204 S57W 117.00 -12 ENE MODERATE CLOUDY 0 0 0 0 0 0 0 41112 1772-07-14T14:00 24.45 -27.27 33 6.7 MADEIRA WEST N48E 247 S56W 119.00 -12 NE MODERATE CLOUDY 0 0 0 0 0 0 0 41113 1772-07-15T14:00 23.22 -29.30 35 9.3 MADEIRA WEST N49E 290 S58W 135.00 -10 NE FRESH BREEZES FAIR 0 0 0 0 0 0 0 41114 1772-07-16T14:00 22.28 -31.70 48 6.7 MADEIRA WEST N52E 338 S66W 136.00 -8 NEBE MODERATE CLOUDY 0 0 0 0 0 0 0 41115 1772-07-17T14:00 21.62 -33.67 50 6.7 MADEIRA WEST NEBE 378 S70W 116.00 -6 NEBE MODERATE CLOUDY 0 0 0 0 0 0 0 41116 1772-07-18T14:00 20.83 -35.64 73 9.3 MADEIRA WEST N55E 408 S70W 116.00 -6 EBN FRESH BREEZES CLEAR 0 0 0 0 0 0 0 41117 1772-07-19T15:00 20.28 -38.14 75 9.3 MADEIRA WEST N57E 458 S74W 148.00 -4 EBN FRESH BREEZES CLEAR 0 0 0 0 0 0 0 41118 1772-07-20T15:00 19.43 -41.09 75 9.3 MADEIRA WEST N59E 514 S73W 170.00 -4 EBN FRESH BREEZES AND SQUALLY 0 0 0 0 0 0 0 41119 1772-07-21T15:00 18.80 -43.82 77 9.3 MADEIRA WEST N60E 567 S63W 163.00 -2 EBN FRESH BREEZES AND SQUALLY 0 0 0 0 0 0 0 41120 1772-07-22T15:00 18.23 -46.42 77 9.3 MADEIRA WEST EBN1/2E 615 S77W 157.00 -2 EBN FRESH BREEZES AND SQUALLY 0 0 0 0 0 0 0 41121 1772-07-23T15:00 17.70 -49.14 79 6.7 MADEIRA WEST N63E 663 S78W 153.00 0 EBN MODERATE CLOUDY 0 0 0 0 0 0 0 41122 1772-07-24T15:00 17.25 -51.32 80 6.7 ANTIGUA WEST W 190 S78W 125.00 1 EBN MODERATE CLOUDY 0 0 0 0 0 0 0 41123 1772-07-26T16:00 16.88 -54.95 82 6.7 ANTIGUA WEST S85W 122 S70W 109.00 3 EBN MODERATE CLOUDY 0 0 0 0 0 0 0 41124 1772-07-27T16:00 16.58 -57.22 71 9.3 ANTIGUA WEST N88W 101 W 130.00 3 ENE FRESH BREEZES CLEAR 0 0 0 0 0 0 0 41125