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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 Halifax to Bermuda started at 1799-08-24 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752402, 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: 36.800000 * Median Longitude: -64.396667 * South-bound Latitude: 32.070000 * West-bound Longitude: -65.900000 * North-bound Latitude: 43.830000 * East-bound Longitude: -62.070000
Date/Time Start: 1799-08-24T16:00:00 * Date/Time End: 1799-09-04T16:00:00
Event(s):
Swan_17990824_NMM_ADM/L/S583 * Latitude Start: 43.400000 * Longitude Start: -63.030000 * Latitude End: 32.180000 * Longitude End: -63.300000 * Date/Time Start: 1799-08-24T00:00:00 * Date/Time End: 1799-09-04T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Swan (Sloop), Voyage: Halifax - Bermuda, 1st Observer: Henry Carew (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
--1 If position is considered to be coastal (in port or near coastal disturbances)
10 CourseCourseCourse of the ship during the past 24 hours
11 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
12 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.
13 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.
14 Wind force descriptionWind force descrAll reported wind forces on this day
15 Precipitation descriptionPrecip descr
16 ClearnessClearness
17 GustsGusts1 If wind gusts are reported
18 Precipitation/RainRain1 If rain was reported
19 FogFog1 If fog was reported
20 Snow typeSnow1 If snow was reported
21 ThunderThunder1 If thunder and or lightning was reported
22 HailHail1 If hail was reported
23 Sea iceSea ice1 If sea-ice or icebergs were reported
24 IdentificationIDCLIWOC 2.1 line number
Size:
224 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)

-
(1 If position is considered t...)
10 
Course
(Course of the ship during the...)
11 
Distance [arbitrary units]
(Distance travelled during the...)
12 
Decl [deg]
(It is generally accepted by t...)
13 
Wind dir descr
(All reported wind directions ...)
14 
Wind force descr
(All reported wind forces on t...)
15 
Precip descr
16 
Clearness
17 
Gusts
(1 If wind gusts are reported)
18 
Rain
(1 If rain was reported)
19 
Fog
(1 If fog was reported)
20 
Snow
(1 If snow was reported)
21 
Thunder
(1 If thunder and or lightning...)
22 
Hail
(1 If hail was reported)
23 
Sea ice
(1 If sea-ice or icebergs were...)
24 
ID
(CLIWOC 2.1 line number)
1799-08-24T16:0043.83-63.571886.7CAPE SABLES74W29S7W41.00-15W, SSWPM LIGHT AIRS AND VARIABLE, AT 12 A BREEZE0000000248284
1799-08-25T16:0041.73-63.57261CAPE SABLEN40W45S126.00-9WBS, WPM MODERATE BREEZESPM CLEAR, AM HAZY0000000248285
1799-08-26T16:0040.33-63.532616.7BERMUDAS5W152S28E98.00-9WPM FRESH BREEZES, AT 3 MORE MODERATEPM HAZY WEATHER0000000248286
1799-08-27T16:0039.68-62.07236BERMUDAS9W147S26E48.00-12VARIABLE, WNW, WSWPM STRONG BREEZESPM HAZY0000000248287
1799-08-28T16:0037.98-63.43306BERMUDAS8W122S31W120.00-9NNE, NE, NWPM FRESH BREEZES,PM CLOUDY WEATHER, AM HAZY0000000248288
1799-08-29T16:0035.63-64.43406.7BERMUDAS3W65S16W147.00-5NNE, NEPM STRONG BREEZES, AM FRESH BREEZE, AT NOON MODERATEPM CLOUDY, AT NOON CLEAR0000000248289
1799-08-30T16:0034.60-65.1285BERMUDAS15E45S27W73.00-5ESE, VARIABLE, EPM MODERATE BREEZES, AT NOON PLEASANT WEATHERPM CLEAR WEATHER0000000248290
1799-08-31T16:0034.77-65.223621.0BERMUDAS13E48N25W9.00-5WNW, VARIABLEPM LIGHT BREEZES, AM LIGHT AIRSPM CLEAR0000000248291
1799-09-01T16:0034.10-65.233622.6BERMUDAS12E40S2W42.00-5SE, VARIABLEPM LIGHT AIRS, AM LIGHT IARS INCLINING TO CALM, AM LIGHT BREEZESPM CLEAR0000000248292
1799-09-02T16:0034.20-65.82362BERMUDAS25E44N76W30.00-5SWBS, SW, VARIABLEPM LIGHT AIRSPM CLEAR WEATHER0000000248293
1799-09-03T16:0032.68-65.902436.7BERMUDAS78E23S2W88.00-5W, WSWPM MODERATE BREEZES, AM MODERATEAT NOON SQUALLS OF RAIN AT TIMESPM CLEAR WEATHER1100000248294
1799-09-04T16:0032.07-64.872686.7BERMUDAE1/2N01S55E63.00-2WPM FRESH BREEZES, AM MODERATE BREEZESPM CLEAR0000000248295