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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 Wilhelmina en Maria cruise from Callao to Valparaiso started at 1827-09-15 [dataset]. Nederlands Scheepvaartmuseum Amsterdam, Netherland, PANGAEA, https://doi.org/10.1594/PANGAEA.752887, 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: -26.168182 * Median Longitude: -85.307273 * South-bound Latitude: -34.400000 * West-bound Longitude: -94.680000 * North-bound Latitude: -12.980000 * East-bound Longitude: -71.670000
Date/Time Start: 1827-09-15T17:00:00 * Date/Time End: 1827-10-06T17:00:00
Event(s):
Wilhelmina_en_Maria_18270915_I-225 * Latitude Start: -12.200000 * Longitude Start: -78.770000 * Latitude End: -33.080000 * Longitude End: -71.670000 * Date/Time Start: 1827-09-15T00:00:00 * Date/Time End: 1827-10-06T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Wilhelmina En Maria (Fregatschip), Voyage: Callao - Valparaiso, 1st Observer: Jacobus Boelen (Kapitein), 2nd Observer: C.J. Claasen (Stuurman), Company: MER, Other ship information: EX FREGATSCHIP 'EUTERPE', 316 TON, GEBOUWD IN 1810 TE BOSTON. IN 1825 OMGEBOUWD EN OMGEDOOPT. SCHIP WERD UITGERUST VOOR EEN EXPEDITIE NAAR ZUID-AMERIKA.
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
Pressure, atmosphericPPPPhPaNo temperature correction was applied. The following factors have been used for the conversion to hPa: 2.54 cm in an inch; 13.596 specific gravity of mercury; 980.65 cm/s gravity at 45° latitude
Temperature, airTTT°C
LandmarkLandmarkName of first landmark
BearingBearingBearing of the first landmark
10 Distance to landmarkDistancearbitrary unitsDistance to the first landmark
11 --1 If position is considered to be coastal (in port or near coastal disturbances)
12 CourseCourseCourse of the ship during the past 24 hours
13 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
14 CommentCommentOther remarks, that were not possible to put in the other remark fields
15 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.
16 Sensor readingReadingarbitrary unitsReading of the (outside) air thermometer
17 Sensor readingReadingarbitrary unitsReading of the air pressure
18 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.
19 Wind force descriptionWind force descrAll reported wind forces on this day
20 Present weatherwwWeather description
21 State of the sea descriptionState sea descr
22 Cloud typeCloud type
23 ClearnessClearness
24 GustsGusts1 If wind gusts are reported
25 Precipitation/RainRain1 If rain was reported
26 FogFog1 If fog was reported
27 Snow typeSnow1 If snow was reported
28 ThunderThunder1 If thunder and or lightning was reported
29 HailHail1 If hail was reported
30 Sea iceSea ice1 If sea-ice or icebergs were reported
31 IdentificationIDCLIWOC 2.1 line number
Size:
450 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...)

PPPP [hPa]
(No temperature correction was...)

TTT [°C]

Landmark
(Name of first landmark)

Bearing
(Bearing of the first landmark)
10 
Distance [arbitrary units]
(Distance to the first landmark)
11 
-
(1 If position is considered t...)
12 
Course
(Course of the ship during the...)
13 
Distance [arbitrary units]
(Distance travelled during the...)
14 
Comment
(Other remarks, that were not ...)
15 
Decl [deg]
(It is generally accepted by t...)
16 
Reading [arbitrary units]
(Reading of the (outside) air ...)
17 
Reading [arbitrary units]
(Reading of the air pressure)
18 
Wind dir descr
(All reported wind directions ...)
19 
Wind force descr
(All reported wind forces on t...)
20 
ww
(Weather description)
21 
State sea descr
22 
Cloud type
23 
Clearness
24 
Gusts
(1 If wind gusts are reported)
25 
Rain
(1 If rain was reported)
26 
Fog
(1 If fog was reported)
27 
Snow
(1 If snow was reported)
28 
Thunder
(1 If thunder and or lightning...)
29 
Hail
(1 If hail was reported)
30 
Sea ice
(1 If sea-ice or icebergs were...)
31 
ID
(CLIWOC 2.1 line number)
1827-09-15T17:00-12.98-78.182244.61018.021.1Z53W74.001070.00290203.00ZWTZBRAMZEILSKOELTEHELDERE OPKLARENDE LUCHT0000000280017
1827-09-16T17:00-14.53-79.721564.61018.020.0Z42W111.001068.00290203.00ZOTZBRAMZEILSKOELTEMOOI WEER0000000280018
1827-09-17T17:00-15.92-81.301562.61015.120.6Z39W106.001069.00290103.00ZOTZFLAUWE BRAMZEILSKOELTEMOOI WEER0000000280019
1827-09-18T17:00-17.02-82.431231.01017.621.1Z33W83.001070.00290201.00OZOFLAUW EN STILBESONDERS GOED WEER0000000280020
1827-09-19T18:00-18.53-83.411462.61019.521.1Z39W111.001170.00290209.00ZOONGESTADIGE KOELTEDONKERE LUCHT0000000280021
1827-09-20T18:00-19.32-84.381461.01020.021.7Z40W54.001171.00290211.00ZOFLAUW EN STILHELDERE LUCHT0000000280022
1827-09-21T18:00-20.05-85.911696.71020.021.7Z57W89.001171.00290211.00ZZOSTIJVE BRAMZEILSKOELTEOVERHALENDE LUCHT0000000280023
1827-09-22T18:00-21.43-87.431464.61022.921.7Z40W115.001171.00290311.00ZOBRAMZEILSKOELTEBUIIGE LUCHTBETROKKEN LUCHT1000000280024
1827-09-23T18:00-23.15-88.981474.61026.021.1Z40W118.001270.00290500.00ZOBRAMZEILSKOELTEMOOI WEER0000000280025
1827-09-24T18:00-25.17-90.821416.71028.920.6Z35W152.001269.00290600.00ZO1/2OSTIJVE BRAMZEILSKOELTEOVERHALENDE LUCHT0000000280026
1827-09-25T18:00-26.83-92.081582.61027.521.1Z40W128.001270.00290506.00ZOTZONGESTADIGE KOELTEBUIIGE LUCHTBETROKKEN LUCHT1000000280027
1827-09-26T18:00-28.60-93.801256.71027.720.0Z36W129.001268.00290507.00OZOSTIJVE BRAMZEILSKOELTEAANGENAAM WEER0000000280028
1827-09-27T18:00-30.37-94.681022.01028.020.0Z17W100.001268.00290508.00OAFNEMENDE KOELTEGOED WEER0000000280029
1827-09-28T18:00-32.23-93.97684.61028.920.0Z24O117.001268.00290600.00NOTOBRAMZEILSKOELTEGOED WEER0000000280030
1827-09-29T18:00-33.10-91.02252.61028.919.4Z70O125.001467.00290600.00NTOONGESTADIGE KOELTEDONKERE LUCHT0000000280031
1827-09-30T18:00-33.57-89.70372.61030.620.0Z76O110.001468.00290607.00NNOFLAUWE BRAMZEILSKOELTEAANGENAAM WEER0000000280032
1827-10-01T18:00-33.75-87.272852.01028.221.1Z87O110.001570.00290509.00N-WAFNEMENDE KOELTEGOED WEER0000000280033
1827-10-02T18:00-33.87-85.353082.61025.321.1Z38O100.001570.00290409.00WNWFLAUWE BRAMZEILSKOELTEBEWOLKTE LUCHT0000000280034
1827-10-03T17:00-33.97-81.623532.91020.720.0Z89O152.001568.00290302.00NNWAANNEMENDE KOELTEHELDERE LUCHT0000000280035
1827-10-04T17:00-34.40-78.422189.31020.217.8MASAFUERA (10H)NTW1/4W3Z85O106.00IN DE SPAANSE KAART OP 33G47M ZB EN 74G22M LENGTE CADIX EN 80G39M LENGTE GREENWICH1564.00290300.00ZZWSTIJVE MARSZEILSKOELTEBEWOLKTE LUCHTHELDERE LUCHT0000000280036
1827-10-05T17:00-33.83-74.622182.61018.316.1N83O206.001561.00290204.00ZZWONGESTADIGE KOELTEAANNEMENDE ZEEBEWOLKTE LUCHT0000000280037
1827-10-06T17:00-33.08-71.671734.61020.215.61N81O127.001560.00290300.00ZZOBRAMZEILSKOELTEHOOGE DEINING UIT ZBEWOLKTE LUCHT0000000280038