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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 SALTASH cruise from Placentia Harbour to Lisbon started at 1751-09-18 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747048, 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: 41.669048 * Median Longitude: -32.783333 * South-bound Latitude: 38.670000 * West-bound Longitude: -59.800000 * North-bound Latitude: 45.200000 * East-bound Longitude: -12.700000
Event(s):
Saltash_17510918_NMM_ADM/L/S39 * Latitude Start: 43.570000 * Longitude Start: -59.800000 * Latitude End: 38.530000 * Longitude End: -9.740000 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Saltash, Start of voyage: 1751-09-29, End of voyage: 1751-10-19, Voyage: Placentia Harbour - Lisbon, 1st Observer: John Knight (Captain), 2nd Observer: Lt James Worth (2nd Officer/Lieutenant), Company: Royal Navy, Other ship information: SLOOP 14G 268BM
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
CourseCourseCourse of the ship during the past 24 hours
10 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
11 CommentCommentAny remark, found in the logbook on this particular day, about the ship, sails, rigging, etc.
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 State of the sea descriptionState sea descr
17 ClearnessClearness
18 GustsGusts1 If wind gusts are reported
19 Precipitation/RainRain1 If rain was reported
20 FogFog1 If fog was reported
21 Snow typeSnow1 If snow was reported
22 ThunderThunder1 If thunder and or lightning was reported
23 HailHail1 If hail was reported
24 Sea iceSea ice1 If sea-ice or icebergs were reported
25 CommentComment
26 IdentificationIDCLIWOC 2.1 line number
Size:
422 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)

Course
(Course of the ship during the...)
10 
Distance [arbitrary units]
(Distance travelled during the...)
11 
Comment
(Any remark, found in the logb...)
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 
State sea descr
17 
Clearness
18 
Gusts
(1 If wind gusts are reported)
19 
Rain
(1 If rain was reported)
20 
Fog
(1 If fog was reported)
21 
Snow
(1 If snow was reported)
22 
Thunder
(1 If thunder and or lightning...)
23 
Hail
(1 If hail was reported)
24 
Sea ice
(1 If sea-ice or icebergs were...)
25 
Comment
26 
ID
(CLIWOC 2.1 line number)
1751-09-29T16:0043.57-59.803006.7CAPE ST MARYSN32W36S52E108.00-15NWFIRST AND LATTER PART MODERATE, MIDDLE PARTS FRESH GALESFIRST AND LATTER PARTS FAIR0000000218404
1751-09-30T16:0044.60-57.6321019.0CAPE ST MARYSN64:51W66EBS94.00-15NW, SWFIRST AND MIDDLE PARTS LITTLE WIND LATTER FRESH GALESFIRST AND MIDDLE PARTS FAIR0000000a trivial correction was made in this observation218405
1751-10-01T16:0045.20-53.5821019.0CAPE ST MARYSN73:33W120S82E104.00-15NW, SWFRESH GALES AND SQUALLY0000000218406
1751-10-02T15:0044.85-50.472786.7CAPE ST MARYSN74:49W164S81E136.00-15SWBW, WNWFIRST AND MIDDLE PARTS FRESH GALES AND SQUALLY, LATTER MODERATE0000000218407
1751-10-03T15:0044.50-47.683116.7CAPE ST MARYSN75:49W204S80E118.00-15SWBS, NWBNMODERATESMALL RAINHAZY0100000218408
1751-10-04T15:0043.63-43.4730019.0CAPE ST MARYSN75:24W267S74E190.00-15NWFRESH GALES AND SQUALLYLOFTY SEAS0000000218409
1751-10-05T15:0043.25-40.972556.7CAPE ST MARYSN75:43W304S78E112.00-15WNW, WFIRST PART FRESH GALES AND SQUALLY, MIDDLE AND LATTER MODERATEMIDDLE AND LATTER CLOUDY0000000218410
1751-10-06T15:0042.92-38.6717619.0CAPE ST MARYSN76:00W338EBS102.00-15WBS, SBWFIRST AND MIDDLE PARTS MODERATE, LATTER FRESH GALESLARGE NORTHERN SWELLFIRST AND MIDDLE FAIR, LATTER CLOUDY0000000218411
1751-10-07T14:0043.03-34.9727819.0CAPE ST MARYSN78:13W388E1/4N165.00AT 2AM A VIOLENT SQUALL - THE BOLT ROPE OF THE MAIN SAIL BROKE NEAR THE WEATHER CLUE AND THE SAIL THEN SPLIT AND FLEW ALL TO PIECES-15SSW, WNWFRESH GALES AND SQUALLYRAIN0100000218412
1751-10-08T14:0042.60-32.172666.7CAPE ST MARYSN78:11W430S78E125.00-15WBNFIRST PART FRESH GALES, MIDDLE AND LATTER MODERATEFIRST PART CLOUDY, MIDDLE AND LATTER FAIR0000000218413
1751-10-09T14:0042.08-28.88269CAPE ST MARYSN78:11W482S78E154.00-12WBNFIRST AND MIDDLE PART MODERATEFIRST AND MIDDLE FAIR, LATTER CLOUDY0000000218414
1751-10-10T14:0041.38-26.752462.6CAPE ST MARYSN77:25W576S66E103.00-13WBSLITTLE WINDSFAIR0000000218415
1751-10-11T14:0040.85-24.951902.6CAPE ST MARYSN76:58W545S68E87.00-13W, SW, SSWLITTLE WINDSFAIR0000000218416
1751-10-12T13:0040.03-22.303119.0CAPE ST MARYSN76:21W590S68E130.00-14SW, WNW, NEFIRST PART LITTLE WINDS, MIDDLE AND LATTER FRESH GALESMIDDLE AND LATTER DRIZZLING RAINFIRST PART FAIR0100000218417
1751-10-13T13:0039.23-20.6365CAPE ST MARYSN75:32W621S58E90.00-14NE, EBNVARIABLEDRIZZLING RAIN0100000218418
1751-10-14T13:0038.80-19.98546.7CAPE ST MARYSN75:02W635S49E40.00-14NEBE, E, ENEMODERATECLOUDY0000000218419
1751-10-15T13:0038.67-19.80872.6CAPE ST MARYSN74:53W639SE11.00-14EBN, EBSLITTLE WINDSFREQUENT SHOWERS OF SMALL RAINCLOUDY1100000218420
1751-10-16T13:0038.93-19.671551.0CAPE ST MARYSN75:21W638N21E17.00-14SEBE, SBEFIRST AND LATTER LIGHT AIRS AND MIDDLE CALMFIRST AND LATTER FAIR0000000218421
1751-10-17T13:0038.93-17.782006.7CAPE ST MARYSN76:02W666E88.00-14S, SWBSFIRST PART LIGHT AIRS, MIDDLE AND LATTER MODERATEFIRST PART FAIR0000000218422
1751-10-18T13:0039.05-15.602106.7CAPE ST MARYSN76:46W695E1/4N102.00-15SWBW, W, SWMODERATEFAIR0000000218423
1751-10-19T13:0038.95-12.702106.7CAPE ST MARYSN77:22W736E1/4S135.00-15SWMODERATEFAIR0000000218424