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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 PERSEUS cruise from Charles Town to Antigua started at 1777-01-26 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.751153, 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: 25.684615 * Median Longitude: -66.423077 * South-bound Latitude: 17.200000 * West-bound Longitude: -77.920000 * North-bound Latitude: 31.830000 * East-bound Longitude: -60.690000
Date/Time Start: 1777-01-26T17:00:00 * Date/Time End: 1777-02-20T16:00:00
Event(s):
Perseus_17770126_NMM_ADM/L/P143 * Latitude Start: 31.830000 * Longitude Start: -77.920000 * Latitude End: 17.000000 * Longitude End: -60.500000 * Date/Time Start: 1777-01-26T00:00:00 * Date/Time End: 1777-02-20T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Perseus (6th Rate Frigate), Voyage: Charles Town - Antigua, 1st Observer: George Keith Elphinstone (Captain), 2nd Observer: John Holloway (1st Officer/Master), Company: Royal Navy, Other ship information: 20G 429BM
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 State of the sea descriptionState sea 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:
494 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 
State sea 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)
1777-01-26T17:0031.83-77.9234219.0CHARLES TOWNN69W36S69E109.004WBN, W, NNWFRESH GALESCLEAR0000000186395
1777-01-27T17:0031.48-76.8426219.0CHARLES TOWNN69:44W56S69E59.003N, SSW, WBSFIRST AND MID LIGHT BREEZES, LATTER FRESH GALES AND SQUALLYHAZY0000000186396
1777-01-28T17:0030.33-74.171946.7CHARLES TOWNN66:05W85S63E154.003SW, SBWFIRST FRESH BREEZES, MID STRONG GALES, LATTER MORE MODERATESOME RAINFIRST CLEAR, MID CLOUDY0100000186397
1777-01-29T17:0029.90-72.85266.7CHARLES TOWNN66:39W131S69E74.003NE, ENE, NNEMODERATECLOUDY0000000186398
1777-01-30T17:0028.35-72.192422.6CHARLES TOWNN63:12W184S70E98.001NE, ENE, NNEFIRST AND LATTER STRONG GALES AND SQUALLY, MID MODERATEHARD RAINMID CLEAR0100000186399
1777-01-31T17:0028.35-70.39242.6CHARLES TOWNN63:12W184S73E98.001NBE, WNW, NNELIGHT BREEZESHAZY0000000186400
1777-02-01T17:0027.60-69.67241.0CHARLES TOWNN63:06W218S63E100.001NBE, NNEFIRST FRESH BREEZES, LATTER LIGHT AIRSFIRST CLOUDY, LATTER CLEAR0000000186401
1777-02-02T17:0026.73-68.07821.0CHARLES TOWNN60W236S31E61.003EBS, E, EBNLIGHT AIRSSWELL FROM THE ECLEAR0000000186402
1777-02-03T16:0027.42-67.0992CHARLES TOWNN65W245N53E66.002EFIRST FRESH BREEZES, MID AND LATTER SQUALLYSOME RAINCLEAR0100000186403
1777-02-04T16:0027.78-67.241342.6ANTIGUAS20:31E228N20W23.00-1SSE, S, SEFIRST FRESH BREEZES, MID AND LATTER LITLE WINDSRAINCLOUDY0100000186404
1777-02-05T16:0027.60-66.641342.6ANTIGUAS17:32E226S74E32.00-1NE, ENE, SELIGHT BREEZESGREAT SWELL FROM NECLEAR0000000186405
1777-02-06T16:0028.00-66.591572.6ANTIGUAS17E226N27E4.00-1E, ESE, SSEFIRS CAM, MID AND LATTER LIGHT BREEZESCLEAR0000000186406
1777-02-07T16:0027.10-66.17479.3ANTIGUAS60:50E209S22E58.002EBN, ENE, NEFIRST LIGHT BREEZES, MID AND LATTER FRESH BREEZES AND SQUALLY0000000186407
1777-02-08T16:0026.00-65.45539.3ANTIGUAS14:50E184S30E76.002NEBE, NEBN, NE1/2EFRESH BREEZES AND SQUALLYSOME SMALL RAIN0100000186408
1777-02-09T16:0025.37-64.99472.6ANTIGUAS14:06E170S34E46.002NEBE, E, NEFIRST FRESH BREEZES AND SQUALLY AT TIMES, LATTER LITTLE WINDS0000000186409
1777-02-10T16:0025.13-64.792951.0ANTIGUAS12:44E160S24E26.002ESE, SSE, WNWLIGHT AIRSCLEAR0000000186410
1777-02-11T16:0024.72-64.172271.0ANTIGUAS7:45E154S64E35.002SWBW, SBE, SE, SWLIGHT AIRSCLEAR0000000186411
1777-02-12T16:0024.90-63.12182ANTIGUAS29E156N79E58.002SBE, SFIRST FRESH BREEZES, MID AND LATTER SQUALLYSOME RAIN0100000186412
1777-02-13T16:0024.90-61.871356.7ANTIGUAS7E157E68.000S, SSW, SBE, SEFIRST STRONG GALES, MIDDLE AND LATTER MODERATEFIRST CLEAR, MID AND LATTER CLOUDY0000000186413
1777-02-14T16:0024.92-61.522032.6ANTIGUAS12:53W159E18.000SEBE, S, SSE, SSWFIRST AND LATTER LITTLE WINDS, MID FRESH BREEZESCLEAR0000000186414
1777-02-15T16:0024.57-61.07315ANTIGUAS19W153S50E33.000SBE, SWBW, SSW, SW, NWFIRST FRESH BREEZES, MID MODERATE, LATTER SQUALLYRAINCLOUDY0100000186415
1777-02-16T16:0022.53-60.873499.3ANTIGUAS20W115S6E122.000WBN, NW, NBWFIRST LIGHT BREEZES, MID FRESH GALES, LATTER FRESH BREEZES0000000186416
1777-02-17T16:0019.23-60.69479.3ANTIGUAS31:38W80S5E20.002NW, N, NEFRESH BREEZESCLEAR0000000186417
1777-02-18T16:0018.63-60.691032.6ANTIGUAS53:14W52S112.002NE, ENE, EBSLIGHT BREEZESCLEAR0000000186418
1777-02-19T16:0017.23-60.69832.6ANTIGUAS86W44S86.004SBE, E, EBNLIGHT BREEZESCLEAR0000000186419
1777-02-20T16:0017.20-61.25832.6ANTIGUAS84W15W36.004EBS, E, EBNFIRST CALM, MID AND LATTER LIGHT BREEZES0000000186420