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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.749174, 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: -31.854286 * Median Longitude: -48.297143 * South-bound Latitude: -33.680000 * West-bound Longitude: -51.180000 * North-bound Latitude: -28.820000 * East-bound Longitude: -46.500000
Date/Time Start: 1777-09-07T15:00:00 * Date/Time End: 1777-09-14T00:00:00
Event(s):
El_Septentrión_17770907_MS_939 * Latitude Start: -35.970000 * Longitude Start: -55.650000 * Latitude End: -26.770000 * Longitude End: -46.280000 * Date/Time Start: 1777-09-07T00:00:00 * Date/Time End: 1777-09-14T00:00:00 * 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
CourseCourseCourse of the ship during the past 24 hours
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:
121 data points

Data

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


Date/Time

Latitude

Longitude

dd [deg]

ff [m/s]

Course

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
1777-09-07T15:00-33.68-51.1821712.3ESE 5º ESALIDA DE MONTEVIDEO PARA STA. CATALINA COMISIONADOS A CONDUCIR VÍVERES14SSOFRESCOTODA LA NOCHE HA SEGUIDO (...) VTO SO FRESCO Y MAR GRUESA. AMANEC. LO MISMO Y ATURBONADO.000000087252
1777-09-08T15:00-33.08-49.98352NE 5º N144° QTE-NNE-NNOVARIAS VENTOLINASA LAS 10 (NOCHE) SE QUEDÓ CALMA CON VARIAS VENTOLINAS DEL 4º QTE. A LAS 3 1/2 ENTABLÓ POR EL NNE(...). AMANEC. CLARO, VTO NNOMAR GRUESA DEL SO000000087253
1777-09-09T15:00-33.12-48.583296.7NE14NOBONANCIBLEA LAS 5 DE LA TARDE SE LLAMÓ (EL VTO) AL N (...). AMANEC. CLARO Y EL VTO AL N.000000087254
1777-09-10T15:00-33.15-47.58352NE14NNOA LAS 4 1/2 LLAMÓ AL N FRESCO (...)ANOCHEC. HORIZ. MUY ATURBONADOS. A LAS 10 DE LA NOCHE REFRESCÓ CON AGUACEROS(...) A LAS 4 DE LA MAÑANA LLAMÓ AL NOCON AGUACEROS010000087255
1777-09-11T15:00-31.15-46.501684.6NNE10SSEFLOJOA LAS 2 (DE LA TARDE) EMPEZÓ A REFRESCAR Y RODÓ AL SE (...) A LAS 12 DE LA NOCHE POR HABER REFRESCADO DEMASIADO (...)A LAS 4 DE LA MAÑANA RODÓ EL VTO000000087256
1777-09-12T15:00-29.98-46.987812.3N10ENEFRESCOA LAS 7 SE LLAMÓ AL NE CON CHUBASCOS (...9 A LAS 12 LLAMÓ AL NNE(...) AMANEC. CON EL VTO CARGANDO DEMASIADO POR EL NE FRESCO Y CON MALOS APARATOS.000000087257
1777-09-13T15:00-28.82-47.281012.3ONO10NFRESCOANOCHEC. LO MISMO PERO CON APARIENCIA DE TURBONADA POR EL 3º QTE (..) A LAS 7 ENTRÓ UN CONTRASTE CON MUCHA FURIA POR EL O CON AGUA, TRUENOS Y RELÁMPAGGRUEA DEL VTO010010087258
1777-09-14T00:0022512.3NO(LLEGADA A STA. CATALINA)SOFRESCOANOCHEC. (...) VTO S FRESQUITO (...). AMANEC. HORIZ. ATURBONADOS, VTO S FRESCO, MAR GRUESA DEL SSO.000000087259