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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 Desirée cruise from Fort Royal to Brest started at 1787-04-20 [dataset]. Centre d'Accueil et de Recherche des Archives Nationales, Paris, France, PANGAEA, https://doi.org/10.1594/PANGAEA.750111, 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: 25.392424 * Median Longitude: -34.029091 * South-bound Latitude: 14.450000 * West-bound Longitude: -61.070000 * North-bound Latitude: 45.500000 * East-bound Longitude: -2.940000
Date/Time Start: 1787-04-20T12:00:00 * Date/Time End: 1787-06-17T00:00:00
Event(s):
La_Desirée_17870420_COTE_4/JJ/36 * Latitude Start: 45.920000 * Longitude Start: -1.800000 * Latitude End: 14.590000 * Longitude End: -61.070000 * Date/Time Start: 1787-04-20T00:00:00 * Date/Time End: 1787-06-17T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: La Desirée, Voyage: Rochefort - Fort Royal, 1st Observer: M. Naisseau de Canilliac (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
--1 If position is considered to be coastal (in port or near coastal disturbances)
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.
10 Wind force descriptionWind force descrAll reported wind forces on this day
11 Present weatherwwWeather description
12 Precipitation descriptionPrecip descr
13 State of the sea descriptionState sea descr
14 GustsGusts1 If wind gusts are reported
15 Precipitation/RainRain1 If rain was reported
16 FogFog1 If fog was reported
17 Snow typeSnow1 If snow was reported
18 ThunderThunder1 If thunder and or lightning was reported
19 HailHail1 If hail was reported
20 Sea iceSea ice1 If sea-ice or icebergs were reported
21 IdentificationIDCLIWOC 2.1 line number
Size:
462 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
10 
Wind force descr
11 
ww
12 
Precip descr
13 
State sea descr
14 
Gusts
15 
Rain
16 
Fog
17 
Snow
18 
Thunder
19 
Hail
20 
Sea ice
21 
ID
1787-04-20T12:0045.50-2.94236.7-22AU NE ET ENEJOLIE FRAIS0000000134875
1787-04-21T13:0044.28-7.84689.3-22AU E ET ESEBON FRAISBEAU TEMPSBELLE0000000134876
1787-04-22T13:0044.68-10.90113-22AU SE ET E ET ENEBEAU TEMPSPEU CREUSE0000000134877
1787-04-23T13:0040.57-12.7924-21AU NE ET ENEBELLE ET UN PEU HOULEUSE0000000134878
1787-04-24T13:0038.55-14.7924-21AU NEBELLE ET HOULEUSE0000000134879
1787-04-25T13:0036.67-16.6526-19AU NEPEU HOULEUSE0000000134880
1787-04-26T13:0034.08-19.3027-18AU NE ET ENEBELLE0000000134881
1787-04-27T13:0032.98-21.7750-18AU ENECOUVERTHOULEUSE0000000134882
1787-04-28T14:0031.15-24.0253-15AU ENECOUVERTBELLE0000000134883
1787-04-29T14:0029.68-25.79530.0-15AU ENE ET SECALMECOUVERTBELLE0000000134884
1787-04-30T14:0027.98-26.8953-15AU ENE ET NEBEAU TEMPSBELLE0000000134885
1787-05-01T14:0026.60-27.8433-12AU NE ET ENEBEAU TEMPSBELLE0000000134886
1787-05-02T14:0025.37-28.6956-12AU ENE ET SSE ET SEBEAU TEMPS0000000134887
1787-05-03T14:0024.27-30.49146-12AU SSE ET SCOUVERT ET PAR GRAINSPLUIEBELLE0100000134888
1787-05-04T14:0023.72-31.001234.6-12AU SE, CALME ET ENEPETITE FRAISCOUVERTBELLE0000000134889
1787-05-05T14:0022.87-32.591494.6-9AU SSE, ESE ET EPETITE FRAISCOUVERTBELLE0000000134890
1787-05-06T14:0022.55-32.97361.0-9AU NE, SO, CALME ET SSEPRESQUE CALMEPETITE TEMPSBELLE0000000134891
1787-05-07T14:0022.33-34.351721.0-8AU S, SSE ET SSOPRESQUE CALME ET PETITE FRAICHEURPETITE TEMPSBELLE0000000134892
1787-05-09T14:0021.43-37.39150-8AU SSE ET SPAR GRAINSPLUIETRÉS GROSSE0100000134893
1787-05-10T15:0020.90-38.85175-5AU S ET SSEBEAU TEMPS0000000134894
1787-05-11T15:0020.48-39.8015312.3-5AU SSE, SO, CALME ET ESEFRAICHEURORAGE0000000134895
1787-05-12T15:0020.45-40.52198-5AU SSO, OSO ET NOBEAU TEMPSBELLE0000000134896
1787-05-13T15:0020.05-41.052434.6-5AU OSO, CALME, NNO, NNE ET ESEPETITE BRISEORAGE0000000134897
1787-05-14T15:0019.20-42.9087-3AU E ET ESE0000000134898
1787-05-15T15:0018.27-44.92110-3AU ESE, ENE ET E0000000134899
1787-05-16T15:0017.38-47.1588-2AU E, ENE ET ESESOMBREGROSSE0000000134900
1787-05-17T15:0016.60-49.37909.30AU E ET ENEBON FRAISHOULEUSE0000000134901
1787-05-18T15:0015.97-51.45680AU ENE0000000134902
1787-05-19T16:0015.25-53.55702AU ENEBEAU TEMPSBELLE0000000134903
1787-05-20T16:0014.60-55.72702AU ENE ET NE0000000134904
1787-05-21T16:0014.50-57.82483AU NE0000000134905
1787-05-22T16:0014.45-59.79483AU NE, ESE ET E0000000134906
1787-05-23T00:0014.4590AU E0000000134907
1787-05-24T00:0090AU E ET ENE0000000134908
1787-05-25T16:0014.59-61.07931A 9 HS. MOUILLÉ A LA RADE DE FORT ROYAL. APAREILLÉ. MOUILLÉ DANS LES CUL DE SAC3AU E0000000134909
1787-06-17T00:00684.61A 6 HS APAREILLÉ POUR ST. PIERRE. MOUILLÉ DANS LA BAYE DE ST. PIERREAU ENEPETITE FRAIS0000000134910