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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 El Septentrión cruise from Montevideo to Santa Catalina started at 1777-05-10 [dataset]. Archivo Museo Naval Madrid, Spain, PANGAEA, https://doi.org/10.1594/PANGAEA.749171, 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: -30.746667 * Median Longitude: -48.084444 * South-bound Latitude: -35.380000 * West-bound Longitude: -52.650000 * North-bound Latitude: -28.050000 * East-bound Longitude: -46.600000
Date/Time Start: 1777-05-11T16:00:00 * Date/Time End: 1777-05-23T00:00:00
Event(s):
El_Septentrión_17770510_MS_939 * Latitude Start: -35.970000 * Longitude Start: -55.650000 * Latitude End: -26.770000 * Longitude End: -46.280000 * Date/Time Start: 1777-05-11T00:00:00 * Date/Time End: 1777-05-23T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: El Septentrión (Navío), Voyage: Montevideo - Santa Catalina(Brasil), 1st Observer: Antonio Osorno (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
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 CommentCommentOther remarks, that were not possible to put in the other remark fields
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 Current speed descriptionV descr
14 Wind force descriptionWind force descrAll reported wind forces on this day
15 Present weatherwwWeather description
16 State of the sea descriptionState sea descr
17 GustsGusts1 If wind gusts are reported
18 Precipitation/RainRain1 If rain was reported
19 FogFog1 If fog was reported
20 Snow typeSnow1 If snow was reported
21 ThunderThunder1 If thunder and or lightning was reported
22 HailHail1 If hail was reported
23 Sea iceSea ice1 If sea-ice or icebergs were reported
24 IdentificationIDCLIWOC 2.1 line number
Size:
196 data points

Data

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


Date/Time

Latitude

Longitude

dd [deg]

ff [m/s]

Landmark

Bearing

Distance [arbitrary units]

Course
10 
Comment
11 
Decl [deg]
12 
Wind dir descr
13 
V descr
14 
Wind force descr
15 
ww
16 
State sea descr
17 
Gusts
18 
Rain
19 
Fog
20 
Snow
21 
Thunder
22 
Hail
23 
Sea ice
24 
ID
1777-05-11T16:00-35.38-52.653531.0SIN GOBIERNOSALIDA DE MONTEVIDEO PARA SANTA CATHALINA15NNOMUCHACUASI CALMAHORIZ. ACELAJADOS(...) ANOCHEC. CON MUHCA CERRAZÓN, HORIZ. DE MAL CARIZ. A LAS 9 1/23 RODÓ EL VTO AL SSE CON MUCHA FUERZA (...) A LAS 10 1/2 RODÓ EL V000000087239
1777-05-12T15:00-34.07-50.3226212.3ENE14OSOFRESCOANOCHEC. HORIZ. MUY ATURBONADOS, MAR MUY GRUESA DEL OSO000000087240
1777-05-13T15:00-31.97-47.9026012.3NNE12OSOFRESCOANOCHEC. (...) CON RECIAS TURBONADAS QUE DURARON TODA LA NOCHE. AMANEC. CON MEJOR SEMBLANTE EL TPO.MUY GRUESA000000087241
1777-05-14T15:00-30.00-47.102359.3NNO10SOFRESQUITO(...) AMANEC. HORIZ. ACELAJADOS000000087242
1777-05-15T15:00-29.65-47.05258NNO 5º NO10OSO Y OANOCHEC. EN CALMA. AMANEC. (...) VTO OSO MUY FLOJO.000000087243
1777-05-16T15:00-29.62-46.902806.7EN E10OBONANCIBLEANOCHEC. VTO NO. AMANEC. HORIZ. CLAROS, MARETA SORDA DEL SO.000000087244
1777-05-17T15:00-29.38-47.073484.6NE10NNOFLOJOANOCHEC. VTO N. AMANEC. CLARO, MAR PICADA DEL SE, VTO N.000000087245
1777-05-18T15:00-28.60-46.603039.3O 1/4 NO10ONOFRESQUITOA LAS 4 SE LLAMÓ EL VTO AL NO (...). AMANEC. HORIZ. CALIMOSOS000000087246
1777-05-19T15:00-28.05-47.17280N 1/4 NO10OANOCHEC. VTO O Y SE FUE ALARGANDO HASTA EL SO Y S.000000087247
1777-05-20T00:00-27.55135ARBOREDONO 1/4 N4ONO 5º OSEANOCHEC. VTO AL NNE. AMANEC. HORIZ. ACELAJADOS, MARETA DEL SE, VTO NNE FRESQUITO000000087248
1777-05-21T00:003384.6ATBOREDONNO 5º NO3O 5º NONNOFLOJOANOCHEC. HORIZ. ABROMADOS (...) VTO NNO EL QUE A LAS 11 1/2 SE QUEDÓ CALMA. AMANEC. LO MISMO Y CON LOS HORIZ. CALIMOSOS.000000087249
1777-05-22T00:003381.0ARBOREDONO6NNOVENTOLINAA LAS 10 1/2 (NOCHE) ENTRÓ UNA VENTOLINA POR EL NNO(...). AMANEC. CLARO.000000087250
1777-05-23T00:003159.3(LLEGADA A STA. CATHALINA)NOFRESQUITO(...) AMANEC. HORIZ. CARGADOS000000087251