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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 JASON cruise from Plymouth Sound to Maderia Road started at 1752-06-08 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.746951, 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: 42.974667 * Median Longitude: -12.846667 * South-bound Latitude: 31.680000 * West-bound Longitude: -19.660000 * North-bound Latitude: 49.300000 * East-bound Longitude: -6.370000
Event(s):
Jason_17520608_NMM_ADM/L/J18 * Latitude Start: 50.299000 * Longitude Start: -4.150000 * Latitude End: 32.130000 * Longitude End: -16.570000 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Jason (4th Rate Frigate), Start of voyage: 1752-06-19, End of voyage: 1752-07-11, Voyage: Plymouth Sound - Maderia Road, 1st Observer: James Young (Captain), 2nd Observer: Lt John Carter Allen (1st Officer/Master), Company: Royal Navy, Other ship information: 44G 810BM
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
LandmarkLandmarkName of second landmark
10 BearingBearingBearing of the second landmark
11 Distance to landmarkDistancearbitrary unitsDistance to the second landmark
12 --1 If position is considered to be coastal (in port or near coastal disturbances)
13 CourseCourseCourse of the ship during the past 24 hours
14 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
15 CommentCommentAny remark, found in the logbook on this particular day, about the ship, sails, rigging, etc.
16 CommentCommentOther remarks, that were not possible to put in the other remark fields
17 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.
18 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.
19 Wind force descriptionWind force descrAll reported wind forces on this day
20 Precipitation descriptionPrecip descr
21 ClearnessClearness
22 GustsGusts1 If wind gusts are reported
23 Precipitation/RainRain1 If rain was reported
24 FogFog1 If fog was reported
25 Snow typeSnow1 If snow was reported
26 ThunderThunder1 If thunder and or lightning was reported
27 HailHail1 If hail was reported
28 Sea iceSea ice1 If sea-ice or icebergs were reported
29 CommentComment
30 IdentificationIDCLIWOC 2.1 line number
Size:
387 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)

Landmark
(Name of second landmark)
10 
Bearing
(Bearing of the second landmark)
11 
Distance [arbitrary units]
(Distance to the second landmark)
12 
-
(1 If position is considered t...)
13 
Course
(Course of the ship during the...)
14 
Distance [arbitrary units]
(Distance travelled during the...)
15 
Comment
(Any remark, found in the logb...)
16 
Comment
(Other remarks, that were not ...)
17 
Decl [deg]
(It is generally accepted by t...)
18 
Wind dir descr
(All reported wind directions ...)
19 
Wind force descr
(All reported wind forces on t...)
20 
Precip descr
21 
Clearness
22 
Gusts
(1 If wind gusts are reported)
23 
Rain
(1 If rain was reported)
24 
Fog
(1 If fog was reported)
25 
Snow
(1 If snow was reported)
26 
Thunder
(1 If thunder and or lightning...)
27 
Hail
(1 If hail was reported)
28 
Sea ice
(1 If sea-ice or icebergs were...)
29 
Comment
30 
ID
(CLIWOC 2.1 line number)
1752-06-19T12:0048.93-6.3721919.0LIZARDN37E26S37W77.00-17ESE, SWBWFRESH GALESHAZY0000000123921
1752-06-20T13:0049.30-8.602186.7LIZARDENE1/2E47WNW1/2W90.00SAW A SHIPS MAST FLOATING ALONG SIDE-18SWBS, SWBWMODERATEHAZY0000000123922
1752-06-21T13:0048.98-9.7727519.0LIZARDN72E63WSW50.00-18SSW, WNWFRESH GALESHAZY0000000123923
1752-06-22T13:0048.72-11.632186.7LIZARDN74E88S77W76.00-18S, SWBWMODERATECLOUDY0000000123924
1752-06-23T13:0048.97-13.832526.7LIZARDN80E112N80W87.00-18SWBS, WMODERATERAINHAZY0100000123925
1752-06-24T13:0048.50-14.132302.6LIZARDENE3/4E121S22W32.00-18NW, WSWLITTLE WINDCLOUDY0000000123926
1752-06-25T13:0047.28-13.881982.6LIZARDN65E125S8E73.00-16WBS, SWBSLITTLE WINDCLOUDY0000000123927
1752-06-26T13:0045.12-12.782432.6LIZARDN22E128S28E95.00-16SWBW, WBSLITTLE WINDCLOUDY0000000a trivial correction was made in this observation123928
1752-06-27T13:0043.42-13.182996.7LIZARDN39E165S3W153.00-16WBS, NWMODERATECLOUDY0000000123929
1752-06-28T13:0041.10-13.423566.7LIZARDN31E205S3/4W140.00-15NBW, NBEMODERATECLOUDY0000000123930
1752-06-29T13:0038.57-13.5027819.0LIZARDNNE1/4E248S2W142.00CARRIED AWAY THE STARBOARD FORE TOPSAIL-15WNWFRESH GALESHAZY0000000123931
1752-06-30T13:0036.75-13.3732419.0LIZARDN22E288S1/4E120.00-14WBS, NNWFRESH GALESHAZY0000000123932
1752-07-01T13:0034.82-14.0096.7LIZARDN21E327MADEIRAS53W84S15E120.00-14NNEMODERATEFAIR0000000123933
1752-07-02T13:0032.48-14.582119.0LIZARDN21E373SSW180.00-13NEBNFRESH GALESCLOUDY0000000123934
1752-07-03T00:0010000000123935
1752-07-04T00:0010000000123936
1752-07-05T00:0010000000123937
1752-07-06T00:0010000000123938
1752-07-07T00:0010000000123939
1752-07-08T00:0010000000123940
1752-07-09T00:0010000000123941
1752-07-10T00:0010000000123942
1752-07-11T13:0031.68-19.661219.0THE WEST END OF MADEIRA73:51NE43S81:52W85.00-11NWBN, NNEFRESH GALESFAIR0000000123943