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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 Spithead started at 1780-05-18 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.751159, 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: 41.784074 * Median Longitude: -51.500000 * South-bound Latitude: 32.100000 * West-bound Longitude: -78.460000 * North-bound Latitude: 49.930000 * East-bound Longitude: -9.870000
Date/Time Start: 1780-05-18T17:00:00 * Date/Time End: 1780-06-13T13:00:00
Event(s):
Perseus_17800518_NMM_ADM/L/P143 * Latitude Start: 31.830000 * Longitude Start: -77.920000 * Latitude End: 50.680000 * Longitude End: -0.960000 * Date/Time Start: 1780-05-18T00:00:00 * Date/Time End: 1780-06-13T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Perseus (6th Rate Frigate), Voyage: Charles Town - Spithead, 1st Observer: George Keith Elphinstone (Captain), 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 Present weatherwwWeather description
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:
514 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 
ww
(Weather description)
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)
1780-05-18T17:0032.15-78.46729.3CHARLES TOWNN67W25S67E76.004NW, NNE, ENEFIRST MODERATE INCLINABLE TO CALM, MID AND LATTER FRESH BREEZES AND SQUALLY0000000186542
1780-05-19T17:0032.10-78.318322.6CHARLES TOWNN68W29S69E71.004EBN, ENE, EBNSTRONG GALES AND SQUALLYRAIN0100000186543
1780-05-20T17:0033.58-76.19225CHARLES TOWNN73W65N50E136.000E, ESE, SWFINE AND PLEASANTFINE AND PLEASANT0000000186544
1780-05-21T17:0034.05-74.76459.3CHARLES TOWNS71W89N69E147.000WSW, VARIABLE, NEBN, NEFRESH BREEZESLOUD THUNDERHEAVY SQUALLS OF RAINHAZY1100100186545
1780-05-22T17:0034.47-73.991249.3CHARLES TOWNS69W104N57E46.000ENE, E, SEBEFIRST AND MID LIGHT AIRS INCLINABLE TO CALM, LATTER FRESH BREEZESLOUD THUNDERHEAVY SQUALLS OF RAINLATTER HAZY1100100186546
1780-05-23T17:0035.05-71.693131.0CHARLES TOWNS71W149N73E118.00-2SSS, N, NWFIRST FRESH, MID SQUALLY, LATTER LIGHT AIRSTHUNDER AND LIGHTNINGRAINFIRST HAZY, LATTER PLEASANT0100100186547
1780-05-24T17:0035.13-70.26211.0CHARLES TOWNS73W172N58E68.00-2SEBS, NE, NNELIGHT AIRSRAINPLEASANT0100000186548
1780-05-25T17:0036.80-69.39771.0CHARLES TOWNS76W183S65E47.00-2NE, NEBE, EBNFIRST SQUALLY, MID AND LATTER LIGHT AIRSCLEAR0000000186549
1780-05-26T17:0035.88-68.392016.7CHARLES TOWNS74W200N43E72.00-2SW, SSWMODERATECLEAR0000000186550
1780-05-27T16:0037.18-66.742219.3CHARLES TOWNS67W233N45E112.00-4SWFRESH BREEZESCLEAR0000000186551
1780-05-28T16:0038.82-64.492969.3N47E144.00-8NWBWFRESH BREEZESCLEAR0000000186552
1780-05-29T16:0040.30-61.29238CAPE RAISN65E178N59E171.00-10WSWFIRST AND MIDDLE FRESH BREEZES, MIDDLE WITH SQUALLSTHUNDER AND LIGHTNINGRAINCLEAR0100100186553
1780-05-30T16:0041.33-58.413519.0S END OF THE BANKS85E174N64E143.00-10NW, W, NEFRESH GALESRAIN0100000186554
1780-05-31T16:0041.83-55.843266.7S END OF THE BANKS64E138N76E118.00-12N, NBW, NNWMODERATECLOUDY0000000186555
1780-06-01T16:0043.07-53.991639.3S END OF THE BANKS88E41N62E222.00-17NWW, NW, SFIRST AND MIDDLE LIGHT BREEZES, LATTER FRESH BREEZESCLOUDY0000000186556
1780-06-02T15:0043.92-50.272419.3S END OF THE BANKS76W44S67E143.00-18S, WBSFRESH BREEZESHAZY0000000186557
1780-06-03T15:0044.83-46.8715019.0S END OF THE BANKS76W87N67E145.00-19SSW, S, SBEFRESH GALES AND SQUALLYRAIN0100000186558
1780-06-04T15:0046.43-42.4724022.6LIZARDN82E474N62E204.00-19S, W, WBSSTRONG GALES AND SQUALLY0000000186559
1780-06-05T15:0046.80-39.822969.3LIZARDN81:35E437N78E110.00-19W, NWFRESH BREEZESHAZY0000000186560
1780-06-06T15:0048.50-38.001119.3LIZARDN85:40E402N45E114.00-24SEBS, SEFRESH BREEZESHAZY0000000186561
1780-06-07T14:0049.37-34.80899.3LIZARDN88E363N60E136.00-24SBE, ESEFRESH BREEZESHAZY0000000186562
1780-06-08T14:0049.22-29.991799.3LIZARDN87E298S87E189.00-24SBW, SSWFRESH BREEZESRAINFIRST HAZY, MID AND LATTER FOGGY0100000186563
1780-06-09T14:0049.28-25.3023519.0LIZARDN86:30E235N89E184.00-24SWBW, W, WBSFRESH GALES AND SQUALLYHEAVY RAIN0100000186564
1780-06-10T13:0049.72-20.1029119.0LIZARDN88E167N87E204.00-24WNW, NNW, NWFRESH GALES AND SQUALLYHEAVY RAIN0100000186565
1780-06-11T13:0049.93-16.64179LIZARDN87E122N87E134.00-24NW, W, SSWFIRST AND MID FRESH BREEZES, LATTER FRESHFIRST AND MID HAZY, LATTER CLEAR0000000186566
1780-06-12T13:0049.20-14.17314LIZARDN76E76S86E274.00-24SW, NW, NNWFIRST FRESH BREEZES, MID LIGHT BREEZESCLEAR0000000186567
1780-06-13T13:0049.23-9.871579.3LIZARDN65E32E130.00-23NNW, WSW, SFRESH BREEZESHAZY0000000186568