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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 BLONDE cruise from Falmouth to Barbados started at 1793-11-17 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747664, 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: 27.944242 * Median Longitude: -25.793636 * South-bound Latitude: 13.200000 * West-bound Longitude: -58.220000 * North-bound Latitude: 49.230000 * East-bound Longitude: -6.950000
Date/Time Start: 1793-11-17T12:00:00 * Date/Time End: 1793-12-19T16:00:00
Event(s):
Blonde_17931117_NMM_ADM/L/B116 * Latitude Start: 49.950000 * Longitude Start: -5.000000 * Latitude End: 14.850000 * Longitude End: -59.680000 * Date/Time Start: 1793-11-17T00:00:00 * Date/Time End: 1793-12-19T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Blonde (5th Rate Frigate), Voyage: Falmouth - Barbados, 1st Observer: John Markham (Captain), Company: Royal Navy, Other ship information: 32G 677BM
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
--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 Present weatherwwWeather description
16 Precipitation descriptionPrecip descr
17 State of the sea descriptionState sea descr
18 ClearnessClearness
19 GustsGusts1 If wind gusts are reported
20 Precipitation/RainRain1 If rain was reported
21 FogFog1 If fog was reported
22 Snow typeSnow1 If snow was reported
23 ThunderThunder1 If thunder and or lightning was reported
24 HailHail1 If hail was reported
25 Sea iceSea ice1 If sea-ice or icebergs were reported
26 CommentComment
27 IdentificationIDCLIWOC 2.1 line number
Size:
602 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)

-
(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 
ww
(Weather description)
16 
Precip descr
17 
State sea descr
18 
Clearness
19 
Gusts
(1 If wind gusts are reported)
20 
Rain
(1 If rain was reported)
21 
Fog
(1 If fog was reported)
22 
Snow
(1 If snow was reported)
23 
Thunder
(1 If thunder and or lightning...)
24 
Hail
(1 If hail was reported)
25 
Sea ice
(1 If sea-ice or icebergs were...)
26 
Comment
27 
ID
(CLIWOC 2.1 line number)
1793-11-17T12:0049.10-6.95134SCILLYN1/2E17S63W84.00-24SSE000000030148
1793-11-18T13:0049.23-9.321782.6CAPE CLEARN9:16W41N87W95.00-25SSWLIGHT WINDSCLEAR WEATHER000000030149
1793-11-19T13:0048.52-11.8516612.3CAPE CLEARN25:27E61S68:10W109.00-25NBE, SBWFRESH BREEZES, AT 1 AM STRONG BREEZESHEAVY RAINHEAVY HEAD SEACLOUDY010000030150
1793-11-20T13:0046.27-15.1834722.6MADEIRAS5:12W269S45:36W198.00-24NE, NBESTRONG GALESCLOUDY000000030151
1793-11-21T13:0044.97-16.02216.7MADEIRAS2:45W243S22:53W87.00-24NEMODERATE BREEZES000000030152
1793-11-22T13:0044.65-16.921676.7MADEIRAS34E236S63:26W43.00-24SBWFRESH BREEZES, LATTER PART MORE MODERATE000000030153
1793-11-23T13:0040.85-16.722939.3MADEIRAS17E160S2:16E227.00-22NWFRESH BREEZESFREQUENT RAINHAZY WEATHER010000030154
1793-11-24T13:0037.92-16.486.7MADEIRAS5W102S3:56E189.00-22THESE 24 HOURS PLEASANT BREEZESCLEAR WEATHER000000030155
1793-11-25T13:0037.13-15.382951.0MADEIRAS26W89S55:59E62.00-20S, NWLIGHT BREEZES INCLINABLE TO CALM000000030156
1793-11-26T13:0036.87-16.781710.0MADEIRAS81S78:12W68.00-20SBWFIRST PART OF THESE 24 HOURS FRESH BREEZES, LATTER STRONG BREEZES, AT NOON CALMLATTER CLOUDY000000030157
1793-11-27T13:0036.35-16.40205MADEIRAS4:59W70S33:14W34.00-20NNW, SWLIGHT BREEZES INCLINABLE TO CALM, LATTER PART SPRUNG UP A BREEZE000000030158
1793-11-28T13:0035.03-16.653401.0MADEIRAS2:31W44S9:0W33.00-20NE, NALL THESE 24 HOURS LIGHT AIRSCLOUDY000000030159
1793-11-29T13:0032.53-17.592962.6FUNCHALLSWBW1/2W21-19NWLIGHT BREEZESPLEASANT WEATHER000000030160
1793-11-30T13:0030.03-18.1827PALMAS1:30E29S15:00W144.00-18ESE, NEFIRST PART FRESH BREEZES000000030161
1793-12-01T13:0028.42-20.15952.6BARBADOSS67:30W783S46W144.00-18S, ESELIGHT BREEZESCLEAR WEATHER000000030162
1793-12-02T13:0028.18-21.2218512.3BARBADOSS67:14W769S75:58W57.00-18NW, SSWALL THESE 24 HOURS STRONG BREEZESRAINCLOUDY WEATHER010000030163
1793-12-03T13:0026.38-22.033106.7BARBADOSS69:26W757S22:33W114.00-16NWBNTHESE 24 HOURS MODERATE BREEZESFINE CLEAR WEATHER000000030164
1793-12-04T14:0025.93-22.503441.0BARBADOSS70:37W744S43:53W38.00-16SWBS, NTHESE 24 HOURS LIGHT AIRSPLEASANT WEATHER000000030165
1793-12-05T14:0023.12-23.472106.7BARBADOSS72:35W724S22:25W136.00-15W, SWSQUALLY WEATHER, LATTER PART MODERATE000000030166
1793-12-06T14:0021.07-24.733029.3BARBADOSS76:33W687S24:12W173.00-13NWFRESH BREEZESCLEAR WEATHER000000030167
1793-12-07T14:0019.47-25.35347BARBADOSS79:3W684S19:30W101.00-13NSQUALLYRAIN010000030168
1793-12-08T14:0018.68-25.603621.0BARBADOSS80:11W657S39:41W61.00-13VARIABLELIGHT AIRSPLEASANT WEATHER000000030169
1793-12-09T14:0018.30-26.103471.0BARBADOSS86:43W617S52:48W36.00-13ESE, NLIGHT AIRSCLOUDY WEATHER000000030170
1793-12-10T14:0017.32-27.50BARBADOSS82:07W617S54:26W100.00-9ALL THESE 24 HOURS PLEASANT WEATHER000000030171
1793-12-11T14:0015.77-30.1710412.3BARBADOSS84:34W567S54:26W179.00-9ESESTRONG BREEZESPLEASANT WEATHER000000030172
1793-12-12T14:0015.07-33.97619.3BARBADOSS85:27W500S77:50W199.00-7ENEFRESH BREEZESCLOUDY WEATHER000000030173
1793-12-13T15:0014.03-37.52639.3BARBADOSS86:34W401S86W240.00-5ENEFRESH BREEZESPLEASANT WEATHER000000030174
1793-12-14T15:0013.89-41.449.3BARBADOSS86:56W355S86.4W-5FRESH BREEZESPLEASANT WEATHER0000000a trivial correction was made in this observation30175
1793-12-15T15:0013.75-45.026.7BARBADOSS86:56W355S86W216.00-2MODERATE BREEZESCLOUDY WEATHER000000030176
1793-12-16T15:0013.43-48.4890BARBADOSS88:28W219S84W205.000EALL THESE 24 HOURS PLEASANT WEATHER000000030177
1793-12-17T15:0013.43-51.8868BARBADOSS89W154S87W200.000ENEALL THESE 24 HOURS PLEASANT WEATHER000000030178
1793-12-18T16:0013.20-55.4280BARBADOSS89:4W84S88:35W206.001EBNHOT SULTRY WEATHERALL THESE 24 HOURS PLEASANT000000030179
1793-12-19T16:0013.27-58.2259BARBADOSS86W30S89:35W168.003NEBEHOT SULTRY WEATHERALL THESE 24 HOURS PLEASANT000000030180