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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 La Graciense cruise from Martinique to Rochefort started at 1790-04-06 [dataset]. Centre d'Accueil et de Recherche des Archives Nationales, Paris, France, PANGAEA, https://doi.org/10.1594/PANGAEA.750182, 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: 33.330370 * Median Longitude: -43.103333 * South-bound Latitude: 17.520000 * West-bound Longitude: -61.650000 * North-bound Latitude: 46.950000 * East-bound Longitude: -9.840000
Date/Time Start: 1790-04-06T00:00:00 * Date/Time End: 1790-05-10T00:00:00
Event(s):
La_Graciense_17900406_COTE_4/JJ/33 * Latitude Start: 14.690000 * Longitude Start: -60.570000 * Latitude End: 45.920000 * Longitude End: -1.800000 * Date/Time Start: 1790-04-06T00:00:00 * Date/Time End: 1790-05-10T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: La Graciense (Fregate), Voyage: Martinique - Rochefort, 1st Observer: M. de Vaugiraud (Capitan)
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
CommentCommentOther remarks, that were not possible to put in the other remark fields
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.
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.
Wind force descriptionWind force descrAll reported wind forces on this day
10 Present weatherwwWeather description
11 State of the sea descriptionState sea descr
12 GustsGusts1 If wind gusts are reported
13 Precipitation/RainRain1 If rain was reported
14 FogFog1 If fog was reported
15 Snow typeSnow1 If snow was reported
16 ThunderThunder1 If thunder and or lightning was reported
17 HailHail1 If hail was reported
18 Sea iceSea ice1 If sea-ice or icebergs were reported
19 IdentificationIDCLIWOC 2.1 line number
Size:
409 data points

Data

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


Date/Time

Latitude

Longitude

dd [deg]

ff [m/s]

Comment

Decl [deg]

Wind dir descr

Wind force descr
10 
ww
11 
State sea descr
12 
Gusts
13 
Rain
14 
Fog
15 
Snow
16 
Thunder
17 
Hail
18 
Sea ice
19 
ID
1790-04-06T00:0090DEPARTDU E0000000137720
1790-04-07T00:001134.6DU E AU ESEPETITE FRAISPLUVIEUXBELLE0000000137721
1790-04-08T16:0017.52-60.191141DU E AU ESE ET ENEVARIABLE0000000137722
1790-04-09T16:0018.57-60.85691.01DU E AU ENE ET NEPRESQUE CALME0000000137723
1790-04-10T16:0019.28-61.02911.01DU EPRESQUE CALMETRÉS BELLE0000000137724
1790-04-11T16:0020.32-61.44461.01DU NE ET ENEPRESQUE CALMEBEAU TEMPSTRÉS BELLE0000000137725
1790-04-12T16:0021.52-61.65691.01AU ENEPRESQUE CALMEBELLE0000000137726
1790-04-13T16:0021.68-61.301811AU S ET SSE0000000137727
1790-04-14T16:0023.08-59.842924.6-1DU O AU ONOPETITE VENTBEAU TEMPS0000000137728
1790-04-15T16:0024.98-57.842929.3-1DU O AU ONOBON FRAIS0000000137729
1790-04-16T16:0027.13-55.4522315.4-2AU SO ET DU O AU NOGROS FRAISPLUVIEUX ET PAR GRAINSTRES GROSSE0000000137730
1790-04-17T16:0029.40-53.09288-5AU ONOCOUVERT0000000137731
1790-04-18T15:0031.40-50.22263-7DU ONO AU OVARIABLEFORT HOULEUSE0000000137732
1790-04-19T15:0032.63-48.50260-10AU O ET ONOVARIABLEFORT HOULEUSE0000000137733
1790-04-20T15:0034.35-45.00236-12AU OSO ET DU O AU NOVARIABLEFORT HOULEUSE0000000137734
1790-04-21T15:0034.57-42.7530315.4-12AU NO ET NNOGROS FRAIS0000000137735
1790-04-22T15:0034.08-41.423474.6-13AU N ET NNEPETITE FRAISMAIS GROSSE0000000137736
1790-04-23T15:0035.78-41.9055-13DU ENE0000000137737
1790-04-24T00:00158DU ESE AU SSE0000000137738
1790-04-25T15:0038.68-38.451411.0-17DU S AU SSEFOIBLECOUVERT0000000137739
1790-04-26T15:0038.95-37.751634.6-17AU SPETITE VENTBELLE0000000137740
1790-04-27T15:0038.18-38.3996-17DU S AU ESEVARIABLE0000000137741
1790-04-28T14:0041.28-34.40162-18AU S ET AU ONO ET NNOVARIABLEBELLE0000000137742
1790-04-29T14:0042.27-32.95515.4-18AU NNEGROS FRAISGROSSE0000000137743
1790-04-30T14:0042.92-28.5929315.4-22AU NO ET NNOGRAND FRAISHOULEUSE0000000137744
1790-05-01T14:0044.48-25.003159.3-23AU NNO ET NOBON FRAISBELLE0000000137745
1790-05-02T13:0046.20-22.15292-23AU NO ET ONOVARIABLEBRUMEUX0000000137746
1790-05-03T13:0046.95-19.02270-23DU O AU ONOVARIABLEBRUMEUX0000000137747
1790-05-04T13:0046.95-14.79247-23AU O ET ONOBEAU TEMPS0000000137748
1790-05-05T13:0046.77-9.84337-23AU N ET NNEBEAU TEMPS0000000137749
1790-05-06T00:00338AU NNO0000000137750
1790-05-10T00:00APAREILLÉ. MOUILLÉ A LA VANT GARDE0000000137751