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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 WALPOLE cruise from Java Head to Portsmouth started at 1793-01-08 [dataset]. British Library, London, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752809, 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: -3.449386 * Median Longitude: 15.855088 * South-bound Latitude: -35.770000 * West-bound Longitude: -37.080000 * North-bound Latitude: 49.530000 * East-bound Longitude: 104.150000
Date/Time Start: 1793-01-08T05:00:00 * Date/Time End: 1793-06-07T13:00:00
Event(s):
Walpole_17930108_BL_L/MAR/B/293Q * Latitude Start: -6.070000 * Longitude Start: 105.770000 * Latitude End: 50.750000 * Longitude End: -0.980000 * Date/Time Start: 1793-01-08T00:00:00 * Date/Time End: 1793-06-07T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Walpole, Voyage: Java Head - Portsmouth, 1st Observer: John Churchill (Captain), Company: EIC, Other ship information: 774BM
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 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 Wind force descriptionWind force descrAll reported wind forces on this day
14 Present weatherwwWeather description
15 Precipitation descriptionPrecip descr
16 State of the sea descriptionState sea descr
17 ClearnessClearness
18 GustsGusts1 If wind gusts are reported
19 Precipitation/RainRain1 If rain was reported
20 FogFog1 If fog was reported
21 Snow typeSnow1 If snow was reported
22 ThunderThunder1 If thunder and or lightning was reported
23 HailHail1 If hail was reported
24 Sea iceSea ice1 If sea-ice or icebergs were reported
25 IdentificationIDCLIWOC 2.1 line number
Size:
1871 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 
Decl [deg]
(It is generally accepted by t...)
12 
Wind dir descr
(All reported wind directions ...)
13 
Wind force descr
(All reported wind forces on t...)
14 
ww
(Weather description)
15 
Precip descr
16 
State sea descr
17 
Clearness
18 
Gusts
(1 If wind gusts are reported)
19 
Rain
(1 If rain was reported)
20 
Fog
(1 If fog was reported)
21 
Snow
(1 If snow was reported)
22 
Thunder
(1 If thunder and or lightning...)
23 
Hail
(1 If hail was reported)
24 
Sea ice
(1 If sea-ice or icebergs were...)
25 
ID
(CLIWOC 2.1 line number)
1793-01-08T05:00-8.25104.15362S20W95.00-1WNW, WBN, VARIABLEUNSETTLEDUNSETTLEDHEAVY RAINLARGE SWELL FROM SE0100000274230
1793-01-09T05:00-8.83104.023621.0S12W37.00-1SW, SBW, S, NNE, VARIABLELIGHT AIRS AND CALMSWELL FROM NWGLOOMY0000000274231
1793-01-10T05:00-9.80103.773626.7S15W58.00-1NWBN, NNE, VARIABLEPLEASANT BREEZELONG SE SWELLFAIR0000000274232
1793-01-11T05:00-9.90103.822240.0S22E7.00-1VARIABLE, SWCALMSULTRYSWELL FRON NW ANOTHER SE0000000274233
1793-01-12T05:00-10.03103.553621.0S62W17.00-1SW, VARIABLELIGHT AIRS AND CALMRAINFAIR0100000274234
1793-01-13T05:00-10.18103.173621.0S76W23.00-1VARIABLELIGHT AIRS AND CALMSULTRYSMOOTH WATERFAIR0000000274235
1793-01-14T05:00-10.88102.233622.6S51W71.00-1S, SSE, VARIABLELIGHT BREEZESSULTRYFAIR0000000274236
1793-01-15T05:00-11.87101.551346.7S30W80.00-1SEBS, ESE, SEBE, SEMODERATESULTRYLARGE SWELL FROM S0000000274237
1793-01-16T05:00-12.93100.481226.7S39W99.00-2SE, ESE, SEBEMODERATE0000000274238
1793-01-17T05:00-13.7899.551446.7S48W74.00-2VARIABLE, SSE, SEBSPLEASANT BREEZEFAIR0000000274239
1793-01-18T06:00-14.2797.481789.3S73W126.00-2SSE, SEBS, SMODERATE TRADESMOOTH WATERFAIR0000000274240
1793-01-19T06:00-15.0294.7316712.3S68W172.00-2SSE, SE, SEBS, SBEFRESH TRADESMOOTH WATERPLEASANT0000000274241
1793-01-20T06:00-15.9391.6214412.3S67W195.00-2SE, SEBE, SEBSFRESH TRADEPLEASANT0000000274242
1793-01-21T06:00-16.5788.9313312.3S73W161.00-2SEFRESH TRADE SOME SQUALLSA LARGE SSE SWELLFAIR0000000274243
1793-01-22T06:00-17.1786.351569.3S74W154.00-2SE, SEBE, EBS, SSEUNSTEADY TRADESULTRYSMOOTH WATER0000000274244
1793-01-23T06:00-17.9283.6212012.3S73W163.00-4SE, ENE, NE, EBS, SEBEFRESH TRADEPLEASANT0000000274245
1793-01-24T07:00-18.4880.708512.3S78W171.00-5EBS, EBN, EFRESH TRADEPLEASANT0000000274246
1793-01-25T07:00-19.1277.807412.3S77W169.00-5E, EBS, ENE, EBN, EBNFRESH TRADELARGE SWELL FROM EPLEASANT0000000274247
1793-01-26T07:00-19.7075.10739.3S77W157.00-6NE, ENE, EBNMODERATE TRADEGREAT DEAL OF RAINPLEASANT0100000274248
1793-01-27T07:00-20.0872.53849.3S76W149.00-6EBN, ENE, EMODERATE TRADEPLEASANT0000000274249
1793-01-28T07:00-20.5271.18726.1S76W78.00-7ENE, ESE, N, VARIABLE, EBNDECREASING BREEZESULTRYGREAT DEAL OF RAIN0100000274250
1793-01-29T07:00-20.4370.872181.0W18.00-7SWLIGHT AIRS AND CALMSULTRY0000000274251
1793-01-30T07:00-20.6870.383621.0S67W30.00-7N, VARIABLELIGHT AIRS AND CALM, SOME SQUALLS0000000274252
1793-01-31T07:00-20.8369.723621.0S75W38.00-7E, EBN, VARIABLELIGHT AIRS AND CALM, SOME SQUALLSSWELL FROM SSE0000000274253
1793-02-01T07:00-21.4768.72941.0S75W58.00-7EBN, ENE, EBSLIGHT AIRS AND CALM, SOME SQUALLSCONFUSED SWELL0000000274254
1793-02-02T08:00-22.2066.72328S72W117.00-10NNWUNSETTLED FREQUENT SQUALLSGREAT DEAL OF HEAVY RAINCONFUSED SWELLOVERCAST0100000274255
1793-02-03T08:00-22.3864.8733912.3S81W104.00-10NBW, EBN, NE, ENE, NBWFIRST AND MID LIGHT AIRS AND CALM, LATTER STRONG BREEZESGREAT DEAL OF HEAVY RAIN0100000274256
1793-02-04T08:00-23.7762.833586.7S68W122.00-13NBW, NW, NWBN, NNW, NBEUNSETTLED WITH HARD SQUALLS, MID AND LATTER MODERATERAINFAIR0100000274257
1793-02-05T08:00-24.4061.232996.7S71W93.00-16NNW, VARIABLE, NBW, NNW, NWMODERATESWELL FROM SEFAIR0000000274258
1793-02-06T08:00-24.6760.483221.0S78W42.00-16NW, WBS, VARIABLE, NNWLIGHT AIRS AND CALMLARGE SWELL FROM SEPLEASANT0000000274259
1793-02-07T08:00-25.0057.837412.3S82W145.00-16SW, SBW, SE, EFIRST MODERATE BREEZES, LATTER STRONG BREEZESSOME RAINPLEASANT THEN OVERCAST0100000274260
1793-02-08T08:00-25.4754.3210622.6S73W200.00-18SEBS, SSE, SEBESTRONG GALES WITH HARD SQUALLSRAINWATER VERY SMOOTH THEN A HIGH SWELL FROM SE0100000274261
1793-02-09T09:00-25.8050.9713719.0S65W200.00-21SE, SSEFRESH GALEHIGH SE SEAOVERCAST0000000274262
1793-02-10T09:00-28.3747.781349.3S62W193.00-24SE, SSEFRESH BREEZESMOOTH WATERPLEASANT0000000274263
1793-02-11T09:00-29.6744.831209.3S61W179.00-26SSE, ESE, SEBSFRESH BREEZELARGE SWELL FROM EPLEASANT0000000274264
1793-02-12T09:00-30.9342.53756.7S63W135.00-26E, EBN, ENE, NE, NNE, N, NBW, EBSMODERATE BREEZELARGE SWELL FROM E AND SWPLEASANT0000000274265
1793-02-13T09:00-30.3341.302776.7S59W62.00-27SW, NWBWPLEASANT BREEZEVERY HEAVY SEA0000000274266
1793-02-14T09:00-30.0539.931876.7S87W61.00-27SSW, S, SWBSFIRST STRONG GALES WITH SOME SMART SQUALLS, LATTER MODERATEBERY HIGH SEAOVERCAST THEN FAIR0000000274267
1793-02-15T09:00-30.3537.76176S73W107.00-27SBW, S, ESE, SE, SSWUNSETTLEDLARGE SW SWELLOVERCAST0000000274268
1793-02-16T10:00-31.2335.451766.7S63W121.00-27ESE, E, ENE, NE, EBN, SSWPLEASANT BREEZESMOOTH WATERFAIR0000000274269
1793-02-17T10:00-32.4332.9041S60W139.00-27EBN, ENE, NBE, SSE, ENEUNSETTLEDCONFUSED SEAPLEASANT0000000274270
1793-02-18T10:00-33.6330.311526.7S59W140.00-28SSE, SE, ESE, EBS, SMODERATE BREEZESMOOTH WATERPLEASANT0000000274271
1793-02-19T10:00-34.9227.77966.7S61W133.00-28SE, EBS, ESE, SEBEMODERATE BREEZES SWELLPLEASANT0000000274272
1793-02-20T10:00-35.5825.54746.7S87W100.00-27SEBE, VARIABLE, NE, S, EBSMODERATEVERY HIGH SWELLPLEASANT0000000274273
1793-02-21T11:00-35.7722.3736212.3N88W144.00-25SBE, SE, VARIABLESTRONG BREEZEA HIGH SW SWELL THEN SMOOTH WATER THEN SWELL FROM SEPLEASANT0000000274274
1793-02-22T11:00-34.5518.4611022.6N66W201.00-25SEBE, ESE, SEBS, SESTRONG GALESSMOOTH WATER THEN A VERY HIGH FOLLOWING SEAPLEASANT0000000274275
1793-02-23T11:00-33.0716.881019.3N33126.00-23VARIABLE, SE, ESE, ENE, NBW, NNW, SEBEFRESH BREEZELARGE SWELL FROM EPLEASANT0000000274276
1793-02-24T11:00-31.2016.222916.7N14W94.00-24NWBW, W, WBN, NWPLEASANT BREEZEHAZY0000000274277
1793-02-25T11:00-29.4814.482356.7N37W132.00-24VARIABLE, SSW, W, WSW, WBSPLEASANT BREEZESMOOTH WATERFAIR0000000274278
1793-02-26T11:00-28.1712.862246.7N46W97.00-24WBS, SW, SSW, SBE, SSE, S, WSWPLEASANT BREEZEFAIR0000000274279
1793-02-27T11:00-26.7010.761369.3N46W147.00-22SBW, SBE, SSEFIRST LIGHT BREEZES, LATTER FRESH BREEZESRAINSWELL FROM SFAIR THEN OVERCAST0100000274280
1793-02-28T11:00-25.038.961139.3N40W134.00-22SSE, SE, SEBS, SEMODERATE TRADESMOOTH WATERPLEASANT0000000274281
1793-03-01T12:00-23.236.941269.3N40W155.00-20SSE, SEBS, SEBE, SEBSMODERATE TRADELARGE SWELL FROM SEPLEASANT0000000274282
1793-03-02T12:00-21.204.881159.3N40W160.00-20SEBS, SEMODERATE TRADEPLEASANT0000000274283
1793-03-03T12:00-19.552.841389.3N44W149.00-20S, SSEMODERATE TRADEPLEASANT0000000274284
1793-03-04T12:00-18.101.071069.3N44W128.00-18SBE, SSE, SEBEMODERATE TRADEPLEASANT0000000274285
1793-03-05T12:00-16.63-0.611409.3N44W122.00-18EBS, ESE, SSEMODERATE TRADESMOOTH WATERFAIR0000000274286
1793-03-06T12:00-16.00-3.0011912.3N72W132.00-16SBE, SSE, SEFRESH TRADESWELL FROM SSEOVERCAST0000000274287
1793-04-13T13:00-14.32-7.68121ST HELENASEBS12N48W151.00-14SEBS, SEOVERCAST0000000274288
1793-04-14T13:00-13.13-9.37121N47W135.00-14SEOVERCAST0000000274289
1793-04-15T13:00-11.68-11.08131N47W138.00-15ESE, SEBSOVERCAST0000000274290
1793-04-16T13:00-10.50-13.10123N58W140.00-12SEBS, SEOVERCAST0000000274291
1793-04-17T13:00-8.90-14.9714612.3N47W151.00-12SE, SSEFRESH TRADESE SWELL0000000274292
1793-04-18T13:00-7.57-16.401349.3N46W113.00-12SEBSMODERATE TRADE0000000274293
1793-04-19T13:00-6.00-17.971259.3N45W133.00-10SEBS, SEMODERATE TRADELARGE SE SWELL0000000274294
1793-04-20T13:00-4.45-19.471259.3N44W130.00-10ESE, SEMODERATE TRADE0000000274295
1793-04-21T13:00-2.25-20.8210212.3N32W153.00-11ESEFRESH TRADESULTRYFAIR0000000274296
1793-04-22T13:00-0.25-21.571029.3N22W121.00-11SEBS, ESEMODERATE TRADESULTRYFAIR0000000274297
1793-04-23T13:001.27-21.951472.6N19W71.00-11SBE, SWBS, SSW, VARIABLE, SSELIGHT BREEZESSULTRY0000000274298
1793-04-24T13:002.22-22.271921.0N18W160.00-11SBW, S, SBE, SSWFIRST MODERATE BREEZES, LATTER LIGHT AIRS AND CALMSULTRYSOME RAIN0100000274299
1793-04-25T13:003.28-22.453621.0N29W32.00-12S, EBN, VARIABLELIGHT AIRS AND CALMSULTRYNE SWELL0000000274300
1793-04-26T14:003.83-22.57251.0N20W21.00-9NNE, SSE, VARIABLE, NEBNLIGHT AIRS AND CALMSULTRY0000000274301
1793-04-27T14:004.25-22.67591.0N14W24.00-9VARIABLE, SE, ENELIGHT AIRS AND CALMSULTRY0000000274302
1793-04-28T14:004.60-22.671261.0N21.00-9NWBW, VARIABLE, SELIGHT AIRS AND CALMSULTRY0000000274303
1793-04-29T13:004.62-22.353261.0N46E26.00-12VARIABLE, NNE, NNWLIGHT AIRS AND CALMGREAT DEAL OF RAIN0100000274304
1793-04-30T13:005.00-22.373621.0-12E, VARIABLELIGHT AIRS AND CALM, SOME SMART SQUALLSHEAVY RAIN0100000274305
1793-05-01T13:004.72-22.383031.0S14W18.00-12NW, NNE, VARIABLE, NWLIGHT AIRS AND CALM, SOME SMART SQUALLSSULTRY0000000274306
1793-05-02T13:004.97-22.483621.0N4W16.00-12NNE, SE, VARIABLELIGHT AIRS AND CALM, SOME SMART SQUALLSSULTRY0000000274307
1793-05-03T14:005.28-22.703621.0N32W24.00-9NE, ENE, VARIABLELIGHT AIRS AND CALM, SOME SMART SQUALLSSULTRY0000000274308
1793-05-04T14:005.63-22.803621.0N30W13.00-9NE, VARIABLELIGHT AIRS AND CALMGREAT DEAL OF RAIN0100000274309
1793-05-05T14:005.95-23.65149.3N70W54.00-9NNEMODERATE TRADESWELL FROM NEFAIR0000000274310
1793-05-06T14:005.85-24.583409.3N81W57.00-9NBWMODERATE TRADESMOOTH WATERFAIR0000000274311
1793-05-07T14:006.00-25.403519.3N72W50.00-9NMODERATE TRADEFAIR0000000274312
1793-05-08T14:006.25-26.383519.3N75W60.00-9NMODERATE TRADELARGE SWELL FROM NEFAIR0000000274313
1793-05-09T14:006.92-27.75279.3N64W90.00-7NEBNUNSETTLED TRADESMOOTH WATERPLEASANT0000000274314
1793-05-10T14:008.03-28.982612.3N47W99.00-8NEBNFRESH TRADEHAZY0000000274315
1793-05-11T14:009.00-29.773712.3N28W106.00-8NEFRESH TRADESWELL FROM NHAZY0000000274316
1793-05-12T14:0010.85-30.68489.3N32W102.00-8NEBEPLEASANT TRADELARGE NE SWELLHAZY0000000274317
1793-05-13T14:0012.13-31.73379.3N41W95.00-8NEPLEASANT TRADELARGE NE SWELLHAZY0000000274318
1793-05-14T14:0013.63-32.682712.3N33W103.00-7NEBNFRESH TRADELARGE NE SWELLPLEASANT0000000274319
1793-05-15T14:0015.18-33.28619.3N20W103.00-7ENEPLEASANT TRADELARGE NE SWELLFAIR0000000274320
1793-05-16T14:0017.20-33.93619.3N18W127.00-7ENEPLEASANT TRADEFAIR0000000274321
1793-05-17T14:0019.02-34.72479.3N25W120.00-9NEBEPLEASANT TRADEFAIR0000000274322
1793-05-18T14:0020.90-35.954712.3N30W130.00-9NEBEFRESH TRADEPLEASANT0000000274323
1793-05-19T14:0023.40-36.704512.3N18W139.00-11NEBEFRESH TRADEPLEASANT0000000274324
1793-05-20T14:0025.30-37.085712.3N11W112.00-11ENEFRESH TRADEPLEASANT0000000274325
1793-05-21T14:0026.60-37.08682.6N74.00-11ESE, SE, EBNLIGHT BREEZESFAIR0000000274326
1793-05-22T14:0027.87-36.921229.3N7E77.00-13SSE, SBW, SSW, SW, SEFIRST LIGHT BREEZES, LATTER FRESH BREEZESSWELL FROM NWPLEASANT0000000274327
1793-05-23T14:0029.15-36.923622.6N74.00-13SW, WBS, WBN, VARIABLELIGHT BREEZESW SWELLPLEASANT0000000274328
1793-05-24T14:0030.98-36.8026812.3N4E104.00-13W, WBNFIRST LIGHT BREEZES, LATTER STRONG BREEZESPLEASANT0000000274329
1793-05-25T14:0032.40-36.4028012.3N13E97.00-13NW, VARIABLE, NWBW, WNWSTRONG BREEZESPLEASANT0000000274330
1793-05-26T14:0033.20-36.2528812.3N6E73.00-16WSW, NWBWSTRONG BREEZESPLEASANT0000000274331
1793-05-27T14:0035.02-36.35232N3W109.00-16SSW, SBW, NWBW, NW, WSWVARIABLE WINDSCONFUSED SWELL0000000274332
1793-05-28T14:0037.23-36.02277N7E134.00-16WBN, WNWUNSETTLEDCONFUSED SWELLPLEASANT0000000274333
1793-05-29T14:0039.42-35.482297.3N10E146.00-19SSW, S, SSE, WSWINCREASING BREEZECONFUSED SWELLPLEASANT0000000274334
1793-05-30T14:0042.48-33.8718419.0N22E198.00-19SSWFRESH GALECONSTANT RAINA FOLLOWING SEA0100000274335
1793-05-31T14:0044.12-30.9822519.0N53E164.00-23S, WSWFRESH GALEVARIABLELARGE FOLLOWING SEA0000000274336
1793-06-01T14:0045.35-27.6822519.0N55E171.00-23WBN, NW, WSWFRESH GALEVARIABLESW SWELL0000000274337
1793-06-02T14:0046.70-24.5729219.0N58E157.00-24NWBW, WNW, NWFRESH GALEVARIABLE0000000274338
1793-06-03T13:0047.95-20.70232N67E172.00-27NW, WBSVARIABLEVARIABLE0000000274339
1793-06-04T13:0048.17-18.37277N75E97.00-27NNW, NNE, NWBWVARIABLEVARIABLELARGE CONFUSED SEA0000000274340
1793-06-05T13:0049.40-16.5287N44E103.00-26ESE, SE, SBE, S, SSW, ESEVARIABLEVARIABLE0000000274341
1793-06-06T13:0049.47-12.871999.3N85E145.00-26WBN, SSW, SWFRESH BREEZEPLEASANT0000000274342
1793-06-07T13:0049.53-7.8717822.6N89E199.00-25VARIABLE, SSW, WSW, SSWSTRONG GALELARGE SWELL FROM WPLEASANT0000000274343