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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 1777-09-07 [dataset]. Archivo Museo Naval Madrid, Spain, PANGAEA, https://doi.org/10.1594/PANGAEA.749173, 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: -31.540000 * Median Longitude: -47.381667 * South-bound Latitude: -33.200000 * West-bound Longitude: -49.600000 * North-bound Latitude: -28.830000 * East-bound Longitude: -45.970000
Date/Time Start: 1777-09-08T15:00:00 * Date/Time End: 1777-09-16T00:00:00
Event(s):
El_Septentrión_17770907_MS_1792 * Latitude Start: -35.970000 * Longitude Start: -55.650000 * Latitude End: -26.770000 * Longitude End: -46.280000 * Date/Time Start: 1777-09-08T00:00:00 * Date/Time End: 1777-09-16T00:00:00 * 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 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
11 CommentCommentOther remarks, that were not possible to put in the other remark fields
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 Current direction descriptionCur dir descrDirection of the current. This direction points to where the current is flowing towards to.
15 Wind force descriptionWind force descrAll reported wind forces on this day
16 Present weatherwwWeather description
17 Precipitation descriptionPrecip descr
18 State of the sea descriptionState sea descr
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 IdentificationIDCLIWOC 2.1 line number
Size:
134 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)

Course
(Course of the ship during the...)
10 
Distance [arbitrary units]
(Distance travelled during the...)
11 
Comment
(Other remarks, that were not ...)
12 
Decl [deg]
(It is generally accepted by t...)
13 
Wind dir descr
(All reported wind directions ...)
14 
Cur dir descr
(Direction of the current. Thi...)
15 
Wind force descr
(All reported wind forces on t...)
16 
ww
(Weather description)
17 
Precip descr
18 
State sea descr
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 
ID
(CLIWOC 2.1 line number)
1777-09-08T15:00-33.12-49.602629.369.50SALIDA DE MONTEVIDEO PARA EL PUERTO DE SANTA CATHALINA CON VÍVERES Y PESOS PARA LA GUARNICIÓN DE LA ISLA Y BUQUES DE LA ESCUADRA14OSONEFRESQUITOANOCHEC. BELLO CARIZ Y MAR GRUESA PERO EL VTO FUE AFLOJANDO Y A LAS 10 QUEDÓ CALMA. Y DESPUÉS HUBO VENOLINILLAS DEL 4º QTE CON QUE AMANEC., LA MAR MÁS000000087549
1777-09-09T15:00-33.13-48.12116.7ENE 9º N14.5014N 1/4 NOBONANCIBLEANOCHEC. VTO FRESQUITO Y AMANEC. HORIZ. ABROMADOS.000000087550
1777-09-10T15:00-33.20-47.0735012.3LA COSTA60ENE53.0012NNOFRESCOANOCHEC. HORIZ. CARGADOS, VTO BONANCIBLE QUE A LAS 10 REFRESCÓ CON CHUBASCOS Y MALAS APARIENCIAS (...) AMANEC. CON HORIZ. CARGADOS, MAR DELO N YVTO FLCHUBASCOSPICADA010000087551
1777-09-11T15:00-30.98-45.971456.7NNE 6º N144.0010SEBONANCIBLEANOCHEC. VTO FRESCO, HORIZ. CARGADOS Y MAR GRUESA DEL N(...) AMANEC. ATURBONADO, VTO Y MAR DUROS.000000087552
1777-09-12T15:00-29.98-46.557812.3ARBOREDONNO55N67.0010ENEFRESCOANOCHEC. ACHUBASCADO Y FUE RODANDO EL VTO AL NE (...) AMANEC.LO MISMO Y FUE ESCASANDO EL VTO AL NNE CON FEO CARIZ. Y MAR GRUESA.000000087553
1777-09-13T15:00-28.83-46.981012.3PUNTA DEL N ISLA STA. CATHALINANO 5º N3373.5010NFRESCOANOCHEC. UNA TURBONADA MUY ESPESA DEL O AL NO (...) A LAS 6 1/2 REVENTÓ LA TURBONADA CON UN IMPREVISTO Y FUERTE GOLPE DE AGUA Y VTO POR EL ONO FUE DES000000087554
1777-09-14T00:002259.3NO 2º O(LLEGADA A SANTA CATHALINA)SOFRESQUITOLLAMÓ DESPUÉS AL SSO MÁS BONANZA (...) ANOCHEC. FOSCO, VTO DEL SUR Y MAR DEL SO (...)PASÓ LA NOCHE EL VTO FLOJO DEL SUR Y CHUBASCOS Y ASÍ AMANEC.000000087555
1777-09-16T00:001809.3SFRESQUITOTOLDADO, CHUBASCOS000000087556