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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 MAGDALENA cruise from Calcutta to Batavia started at 1853-07-21, Version 2 [dataset]. Koninklijk Nederlands Meteorologisch Instituut, De Bilt, PANGAEA, https://doi.org/10.1594/PANGAEA.746811, 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: 4.753333 * Median Longitude: 93.993000 * South-bound Latitude: -6.620000 * West-bound Longitude: 86.500000 * North-bound Latitude: 20.630000 * East-bound Longitude: 106.860000
Date/Time Start: 1853-07-21T06:00:00 * Date/Time End: 1853-08-19T05:00:00
Event(s):
Magdalena_18530721_B_REIS_1A_P2-9 * Latitude Start: 19.150000 * Longitude Start: 88.300000 * Latitude End: -6.100000 * Longitude End: 106.860000 * Date/Time Start: 1853-07-21T00:00:00 * Date/Time End: 1853-08-19T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Magdalena, Voyage: Calcutta - Batavia, 1st Observer: A.P. Klein (Kapitein)
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
--1 If position is considered to be coastal (in port or near coastal disturbances)
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.
10 Wind scale referenceWind scale ref#Name of, or reference to the wind scale that has been used
11 Sensor readingReadingarbitrary unitsReading of the (outside) air thermometer
12 Sensor readingReadingarbitrary unitsReading of the air pressure
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 Wind force descriptionWind force descrAll reported wind forces on this day
15 Present weatherwwWeather description
16 Precipitation descriptionPrecip 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 CommentComment
25 IdentificationIDCLIWOC 2.1 line number
Size:
533 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]

-
(1 If position is considered t...)

Decl [deg]
(It is generally accepted by t...)
10 
Wind scale ref [#]
(Name of, or reference to the ...)
11 
Reading [arbitrary units]
(Reading of the (outside) air ...)
12 
Reading [arbitrary units]
(Reading of the air pressure)
13 
Wind dir descr
(All reported wind directions ...)
14 
Wind force descr
(All reported wind forces on t...)
15 
ww
(Weather description)
16 
Precip descr
17 
Gusts
(1 If wind gusts are reported)
18 
Rain
(1 If rain was reported)
19 
Fog
(1 If fog was reported)
20 
Snow
(1 If snow was reported)
21 
Thunder
(1 If thunder and or lightning...)
22 
Hail
(1 If hail was reported)
23 
Sea ice
(1 If sea-ice or icebergs were...)
24 
Comment
25 
ID
(CLIWOC 2.1 line number)
1853-07-21T06:0020.6388.232502.6993.031.12288.0029.32WZW2ZWARE BUIEN1000000158537
1853-07-22T06:0019.6388.1020512.3995.729.42685.0029.40ZZW60000000158538
1853-07-23T06:0019.3787.1525012.3999.130.02686.0029.50WZW60000000158539
1853-07-24T06:0018.7887.082509.31000.730.62587.0029.55WZW50000000158540
1853-07-25T06:0018.4887.6525012.3999.131.12688.0029.50WZW60000000a trivial correction was made in this observation158541
1853-07-26T06:0017.2386.502506.71001.130.62487.0029.56WZW40000000a trivial correction was made in this observation158542
1853-07-27T06:0016.9586.802279.31003.130.02586.0029.62ZW50000000158543
1853-07-28T06:0014.6587.382506.71004.530.02486.0029.66WZW40000000158544
1853-07-29T06:0013.3587.282276.71005.130.62487.0029.68ZW40000000158545
1853-07-30T06:0012.6787.102276.71005.130.02486.0029.68ZW40000000158546
1853-07-31T06:0011.2887.952389.31005.129.42585.0029.68ZWTW50000000158547
1853-08-01T06:009.2388.822509.31005.529.42585.0029.69WZW5MOTREGEN0100000158548
1853-08-02T06:007.1089.932499.31007.929.41585.0029.76WZW50000000158549
1853-08-03T06:004.0590.833169.31007.230.01586.0029.74NW5REGEN0100000158550
1853-08-04T06:001.5092.533161.01007.929.41185.0029.76NW10000000158551
1853-08-05T06:000.3893.8311007.928.9184.0029.76NREGEN0100000158552
1853-08-06T06:000.5594.48461.01006.529.41185.0029.72NO10000000158553
1853-08-07T06:00-1.4795.22911.01007.229.41185.0029.74O10000000158554
1853-08-08T06:00-2.0795.523611006.230.6187.0029.71STILBUIIGZWAAR STORTREGEN1100000158555
1853-08-09T06:00-2.4595.823169.31005.830.01586.0029.70NW5BUIIGREGEN1100000158556
1853-08-10T05:00-3.7397.90691.01006.229.41185.0029.71ONO1BUIIGAFWISSELEND REGEN1100000158557
1853-08-11T05:00-4.5599.12469.31007.227.81582.0029.74NO5BUIIGREGEN1100000158558
1853-08-12T05:00-5.22100.151008.528.3183.0029.78DOLDRUM. BUIIG NW-ZWREGEN1100000158559
1853-08-13T05:00-5.60100.371007.227.8182.0029.74DOLDRUM. BLIKSEMREGEN0100100158560
1853-08-14T05:00-6.27101.131360.01009.227.2181.0029.80ZOSTILDONDER WEERLICHTREGEN0100000158561
1853-08-15T05:00-6.30102.721146.71007.927.81482.0029.76OZO4PASSAAT0000000158562
1853-08-16T05:00-6.60103.521149.31008.528.31583.0029.78OZO50000000158563
1853-08-17T05:00-6.62104.421144.61007.928.91384.0029.76OZO30000000158564
1853-08-18T05:00-6.25105.401361006.828.3183.0029.73ZO0000000158565
1853-08-19T05:00-6.10106.86110000000158566