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García-Herrera, Ricardo; Können, Gunther P; Wheeler, Dennis A; Prieto, Maria del Rosario; Jones, Philip D; Koek, Frits B (2010): Meteorological observations during SWAN cruise from Bermuda to Mona Island started at 1800-05-11 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752408, 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) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.611088

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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
Funding:
Fifth Framework Programme (FP5), grant/award no. EVK2-CT-2000-00090: Climatological Database for the Worlds Oceans: 1750-1854
Coverage:
Median Latitude: 27.626154 * Median Longitude: -61.529231 * South-bound Latitude: 18.830000 * West-bound Longitude: -65.570000 * North-bound Latitude: 33.520000 * East-bound Longitude: -59.370000
Date/Time Start: 1800-05-11T16:00:00 * Date/Time End: 1800-05-23T16:00:00
Event(s):
Swan_18000511_NMM_ADM/L/S583 * Latitude Start: 32.180000 * Longitude Start: -63.300000 * Latitude End: 19.180000 * Longitude End: -68.150000 * Date/Time Start: 1800-05-11T00:00:00 * Date/Time End: 1800-05-23T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Swan (Sloop), Voyage: Bermuda - Mona Island, 1st Observer: Jacob Watton (Captain), Company: Royal Navy, Other ship information: 14G 300BM
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
DATE/TIMEDate/TimeGeocode
LATITUDELatitudeGeocode
LONGITUDELongitudeGeocode
Wind directiondddegWind 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 speedffm/scalculated from the descriptive terms of wind force given in the observations
LandmarkLandmarkName of first landmark
BearingBearingBearing of the first landmark
Distance to landmarkDistancearbitrary unitsDistance to the first landmark
CourseCourseCourse of the ship during the past 24 hours
10 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
11 DeclinationDecldegIt 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.
12 Wind direction descriptionWind dir descrAll reported wind directions on this day. The wind direction is the direction that points to where the wind comes from.
13 Wind force descriptionWind force descrAll reported wind forces on this day
14 Precipitation descriptionPrecip descr
15 ClearnessClearness
16 GustsGusts1 If wind gusts are reported
17 Precipitation/RainRain1 If rain was reported
18 FogFog1 If fog was reported
19 Snow typeSnow1 If snow was reported
20 ThunderThunder1 If thunder and or lightning was reported
21 HailHail1 If hail was reported
22 Sea iceSea ice1 If sea-ice or icebergs were reported
23 IdentificationIDCLIWOC 2.1 line number
Size:
241 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


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...)
10 
Distance [arbitrary units]
(Distance travelled during the...)
11 
Decl [deg]
(It is generally accepted by t...)
12 
Wind dir descr
(All reported wind directions ...)
13 
Wind force descr
(All reported wind forces on t...)
14 
Precip descr
15 
Clearness
16 
Gusts
(1 If wind gusts are reported)
17 
Rain
(1 If rain was reported)
18 
Fog
(1 If fog was reported)
19 
Snow
(1 If snow was reported)
20 
Thunder
(1 If thunder and or lightning...)
21 
Hail
(1 If hail was reported)
22 
Sea ice
(1 If sea-ice or icebergs were...)
23 
ID
(CLIWOC 2.1 line number)
1800-05-11T16:0032.73-63.451412.6ST DAVIDS HEADS67W20N67E58.00-5S, SEBSLIGHT BREEZESCLEAR WEATHER0000000248362
1800-05-12T16:0033.37-63.53175ST JOHNS PORTOS13:42W306N50E60.00-5SEBS, SPM MODERATE BREEZESPM HAZY WEATHER0000000248363
1800-05-13T16:0033.52-61.502186.7ST JOHNS PORTOS16:39W313N80E53.00-7S, SWPM LIGHT BREEZES, AM MODERATEPM SMALL RAINAM CLOUDY0100000248364
1800-05-14T16:0033.13-61.1361ST JOHNS PORTOS18:10W308S38E30.00-7WSW, ENEPM CALMPM CLOUDY0000000248365
1800-05-15T16:0030.75-60.0024419.0ST JOHNS PORTOS24:53W271S22E154.00-4WSWPM FRESH BREEZES AND SQUALLY, AM FRESH GALESPM HEAVY RAINS0100000248366
1800-05-16T16:0029.38-59.60266ST JOHNS PORTOS29:7W249S14E85.00-4NNE, WPM MODERATE BREEZES0000000248367
1800-05-17T16:0028.50-59.3719MORA CASTLES35W233S2W53.00-4VARIABLE, NNEPM LIGHT AIRSPM CLEAR WEATHER0000000248368
1800-05-18T16:0027.90-59.57362MORA CASTLES31:49W221S16W38.00-4SE, VARIABLEPM LIGHT AIRSPM CLOUDY0000000248369
1800-05-19T16:0026.10-59.95112MORA CASTLES32:35W187S11W110.00-1ESEPM MODERATE BREEZESRAINPM CLOUDY0100000248370
1800-05-20T16:0024.08-60.831129.3MORA CASTLES45:34W159S15W125.00-1ESEPM MODERATE BREEZES, AM FRESH BREEZES AND SQUALLYPM CLOUDY0000000248371
1800-05-21T16:0021.60-62.10114MORA CASTLES55:07W108S25W165.001ESEPM FRESH BREEZESPM CLOUDY0000000248372
1800-05-22T16:0019.25-63.281039.3MORA CASTLES78W69S25W158.002EBSFRESH BREEZESCLOUDY0000000248373
1800-05-23T16:0018.83-65.571159.3MORA CASTLES75W26S80W128.002ESEFRESH BREEZESCLOUDY0000000248374