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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 SEAHORSE cruise from Lisbon to Uk started at 1751-09-08 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747060, 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: 44.167333 * Median Longitude: -11.701333 * South-bound Latitude: 39.320000 * West-bound Longitude: -15.520000 * North-bound Latitude: 49.280000 * East-bound Longitude: -4.320000
Event(s):
Seahorse_17510908_NMM_ADM/L/S219A * Latitude Start: 38.530000 * Longitude Start: -9.740000 * Latitude End: 49.450000 * Longitude End: -5.630000 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Seahorse (6th Rate Frigate), Start of voyage: 1751-09-19, End of voyage: 1751-10-03, Voyage: Lisbon - Uk, 1st Observer: Samuel Barrington (Captain), 2nd Observer: John Hapton (1st Officer/Master), Company: Royal Navy, Other ship information: 24G. 504BM
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Date/time startDate/time start
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:
302 data points

Data

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


Date/time start

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)
1751-09-19T13:0044.28-10.8562.6CAPE ROXENENE8-17W, NWBN, NNEFIRST PART MODERATE GALES, MID AND LATTER LITTLE WINDSSHOWERS OF RAINHAZY1100000233721
1751-09-20T13:0039.32-11.91719.0CAPE ROXENS77:34E39N77:34W226.00-16NEBN, NNEFIRSTR PART MODERATE GALES, MID AND LATTER FRESH GALES1ST PART FAIR, MID AND LATTER CLOUDY0000000233722
1751-09-21T13:0040.27-13.87306.7CAPE ROXENS67:52E73N57:39W107.00-15NEBN, NEFIRST PART FRESH GALES, MID AND LATTER MODERATECLOUDY0000000233723
1751-09-22T13:0041.20-14.87532.6CAPE ROXENS60:53E93N39:24W72.00-15NEBN, ENEFIRST PART MODERATE, MIDDLE AND LATTER LITTLE WINDCLOUDY0000000233724
1751-09-23T13:0041.57-15.41412.6CAPE ROXENS59:24E105N46:16W32.00-15CALM, NE, NEBEFIRST PART CALM, MIDDLE AND LATTER LITTLE WINDCLOUDY0000000233725
1751-09-24T13:0042.22-15.521092.6CAPE ROXENS54:06E113N17:18W39.00-15NEBE, ESE, SEBELITTLE WINDCLOUDY0000000233726
1751-09-25T13:0042.93-15.413222.6CAPE ROXENS47:53E120N5:1943.00-16EBS, EBN, NNWLITTLE WINDSHOWERS OF RAINCLOUDY1100000233727
1751-09-26T13:0043.57-14.2223219.0CAPE ROXENS37:13E117N53:19E64.00-16NBE, WNW, WSWFIRST AND MIDDLE PART LITTLE WINDS, LATTER FRESH GALESRAINCLOUDY0100000233728
1751-09-27T13:0043.77-12.71299CAPE ROXENS26:23E109N80:00E69.00-16NNE, NBW, NWBN, NW1ST PART FRESH GALES, MID MODERATE, LATTER SQUALLYRAIN0100000233729
1751-09-28T13:0045.03-11.14321CAPE ROXENS11:19E125N45:00E108.00-17NW, NWBW, NNWSQUALLYSHOWERS OF RAIN1100000233730
1751-09-29T13:0045.50-10.57176.7CAPE ROXENS6:55E133N39:24E36.00-17N, NBE, NEBNFRESH GALES AND SQUALLY IN FIRST AND MIDDLE, LATTER MODERATERAINFAIR0100000233731
1751-09-30T13:0046.60-10.161416.7CAPE ROXENS3:38E154N15:15E69.00-17EBN, E, SSEMODERATECLOUDY0000000233732
1751-10-01T13:0047.97-7.8430822.6CAPE ROXENS7:29W183N48:31E127.00-18SW, NW, NWBNMODERATE IN THE FIRST, MID AND LATTER STRONG GALES AND SQUALLYCLOUDY0000000233733
1751-10-02T12:0049.00-6.7230915.4CAPE ROXENS11:07W206N35:22E76.00-17NNW, NWBNMODERATE GALESRAINCLOUDY0100000233734
1751-10-03T12:0049.28-4.3230915.4CAPE ROXENS19:37W2211N80:09E99.00-17NNW, NWBNMODERATE GALESCLOUDY0000000233735