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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 Monserrat to Spithead started at 1771-08-16 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.749875, 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: 37.693889 * Median Longitude: -46.226111 * South-bound Latitude: 19.000000 * West-bound Longitude: -62.760000 * North-bound Latitude: 49.850000 * East-bound Longitude: -9.680000
Date/Time Start: 1771-08-16T16:00:00 * Date/Time End: 1771-09-20T13:00:00
Event(s):
Jason_17710816_NMM_ADM/L/J24 * Latitude Start: 16.580000 * Longitude Start: -62.200000 * Latitude End: 50.680000 * Longitude End: -0.960000 * Date/Time Start: 1771-08-16T00:00:00 * Date/Time End: 1771-09-20T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Jason (Sloop), Voyage: Monserrat - Spithead, 1st Observer: John Botterell (Captain), Company: Royal Navy, Other ship information: 20G
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 ClearnessClearness
16 GustsGusts1 If wind gusts are reported
17 Precipitation/RainRain1 If rain was reported
18 FogFog1 If fog was reported
19 Snow typeSnow1 If snow was reported
20 ThunderThunder1 If thunder and or lightning was reported
21 HailHail1 If hail was reported
22 Sea iceSea ice1 If sea-ice or icebergs were reported
23 IdentificationIDCLIWOC 2.1 line number
Size:
685 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 
Clearness
16 
Gusts
(1 If wind gusts are reported)
17 
Rain
(1 If rain was reported)
18 
Fog
(1 If fog was reported)
19 
Snow
(1 If snow was reported)
20 
Thunder
(1 If thunder and or lightning...)
21 
Hail
(1 If hail was reported)
22 
Sea ice
(1 If sea-ice or icebergs were...)
23 
ID
(CLIWOC 2.1 line number)
1771-08-16T16:0019.00-62.76726.7NEVISS5W38N5:00E116.004EBN-ENEMODERATEFAIR0000000124043
1771-08-17T16:0020.92-62.03596.7NEVISS9E78N20W123.003EBN-NEBEMODERATEFAIR0000000124044
1771-08-18T16:0022.50-61.78826.7NEVISS9E109N13W98.003NE-EBNMODERATERAINFAIR0100000124045
1771-08-19T16:0024.07-62.111029.3NEVISS3E139N12E97.001ENE-EBSFRESH BREEZES AND SQUALLYRAIN0100000124046
1771-08-20T16:0025.70-62.061366.7NEVISS172N21E105.001EBS-SEMODERATEFAIR0000000124047
1771-08-21T16:0027.07-62.00802.6NEVISS3W20021E88.001VARIABLE-EBNLITTLE WINDFAIR0000000124048
1771-08-22T16:0028.58-62.181112.6NEVISS2W231N1/2W92.00-2EBN-ESELITTLE WINDFAIR0000000124049
1771-08-23T16:0029.03-62.181112.6NEVISS1W?239N27.00-2ENE-ESELITTLE WINDFAIR0000000124050
1771-08-24T16:0029.42-61.732912.6NEVISS3W248NE33.00-2SW, WNWLITTLE WINDFAIR0000000124051
1771-08-25T16:0030.08-60.953132.6NEVISS6W262NE58.00-2NWLITTLE WINDFAIR0000000124052
1771-08-26T16:0030.80-60.103136.7NEVISS9W278NE64.00-2NWMODERATEFAIR0000000124053
1771-08-27T16:0032.20-58.452916.7NEVISS14W312NE120.00-2WNWMODERATEFAIR0000000124054
1771-08-28T16:0033.37-57.153086.7NEVISS16W304N43E96.00-7NWMODERATEHAZY0000000124055
1771-08-29T16:0034.05-56.282071.0NEVISS18W353N47E59.00-7SWBSLIGHT AIRS0000000124056
1771-08-30T16:0034.57-55.352076.7NEVISS20W366NEBE30.00-7SWBSMODERATECLOUDY0000000124057
1771-08-31T16:0034.83-54.931966.7NEVISS21W375N51E26.00-7SSWMODERATECLOUDY0000000124058
1771-09-01T16:0035.48-54.80276.7NEVISS21W390NBE40.00-7NEBNMODERATECLOUDY0000000124059
1771-09-02T16:0036.87-53.55949.3NEVISS22W424N36?103.00-7EBSFRESH BREEZES AND SQUALLY0000000124060
1771-09-03T15:0040.67-49.501469.3NEVISS25W526N49E148.00-12SSEFRESH BREEZESRAINCLOUDY0100000124061
1771-09-04T15:0040.67-49.5011219.0NEVISS26W520N33E150.00-12SEBEFRESH GALESLATTER PART HARD RAINCLOUDY0100000124062
1771-09-05T15:0042.62-48.0111815.4NEVISS27W566N33E140.00-17SSE-SEMODERATE GALESCLOUDY0000000124063
1771-09-06T15:0044.00-46.461186.7NEVISS28W603N40E108.00-17SSE-SEMODERATECLOUDY0000000124064
1771-09-07T15:0045.33-45.231072.6LIZARDN80E546N33E96.00-17SE-SEBELITTLE WINDFAIR WEATHER0000000124065
1771-09-08T15:0045.83-43.251292.6LIZARDN81E513N67E90.00-17SE-SEBSLITTLE WINDFAIR WEATHER0000000124066
1771-09-09T15:0046.33-40.601622.6LIZARDN81E473EBN113.00-18SBW-SLITTLE WINDFAIR WEATHER0000000124067
1771-09-10T14:0046.62-37.011732.6LIZARDN81E427N83E150.00-18SBWLITTLE WINDFAIR WEATHER0000000124068
1771-09-11T14:0046.80-34.981852.6LIZARDN80E399N82E85.00-18SBW-SSWLITTLE WINDFAIR WEATHER0000000124069
1771-09-12T14:0046.85-31.802619.0LIZARDN79E360E134.00-19SSW-NEFIRST PART MODERATE, LATTER FRESH GALESFIRST PART CLOUDY0000000124070
1771-09-13T14:0046.30-30.23496.7LIZARDN77E340S65E74.00-19ENEFIRST PART FRESH GALES, LATTER MODERATEFIRST PART CLOUDY0000000124071
1771-09-14T14:0046.50-29.262512.6LIZARDN77E325N73E42.00-19NNW-WLITTLE WINDCLOUDY0000000124072
1771-09-15T14:0047.00-25.60296LIZARDN77E274N78E154.00-19NBE-NWFIRST PART LITTLE WIND, LATTER SQUALLYLATTER RAINFIRST PART CLOUDY0100000124073
1771-09-16T14:0047.00-22.902615.4LIZARDN75E240E111.00-19NBW-NEMODERATE GALES AND SQUALLY WEATHER0000000124074
1771-09-17T13:0047.62-20.562936.7LIZARDN76E207N69E104.00-22ENE-NWMODERATECLOUDY0000000124075
1771-09-18T13:0048.60-16.4524819.0LIZARDN79E149N70E176.00-22SW-WFIRST PART MODERATE, LATTER FRESH GALES AND SQUALLYLATTER RAINFIRST PART CLOUDY0100000124076
1771-09-19T13:0049.85-12.7324819.0LIZARDN80E98N78E153.00-22WFRES GALES AND SQUALLY0000000124077
1771-09-20T13:0049.85-9.683496.7LIZARDN74E59E120.00-22SWBW-NBEMODERATERAINCLOUDY0100000124078