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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 Middelburgs Welvaren cruise from Middelburg to West Afrika started at 1756-10-25 [dataset]. Rijksarchief Zeeland, Middelburg, Netherland, PANGAEA, https://doi.org/10.1594/PANGAEA.750795, 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: 26.452619 * Median Longitude: -16.778095 * South-bound Latitude: 6.730000 * West-bound Longitude: -21.130000 * North-bound Latitude: 49.800000 * East-bound Longitude: -4.520000
Date/Time Start: 1756-10-25T12:00:00 * Date/Time End: 1756-12-05T13:00:00
Event(s):
Middelburgs_Welvaren_17561025_MCC_20_787 * Latitude Start: 51.460000 * Longitude Start: 3.330000 * Latitude End: 4.580000 * Longitude End: 2.070000 * Date/Time Start: 1756-10-25T00:00:00 * Date/Time End: 1756-12-05T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Middelburgs Welvaren, Voyage: Middelburg - West Afrika, 1st Observer: D. Smulders (Schipper), Company: MCC
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
Image number/nameImage no/nameIdentification Number of the original image
LandmarkLandmarkName of first landmark
BearingBearingBearing of the first landmark
Distance to landmarkDistancearbitrary unitsDistance to the first landmark
10 LandmarkLandmarkName of second landmark
11 BearingBearingBearing of the second landmark
12 Distance to landmarkDistancearbitrary unitsDistance to the second landmark
13 --1 If position is considered to be coastal (in port or near coastal disturbances)
14 WatchWatchName of the period of 4 hours which is known as a watch or duty on board ships
15 GlassesGlassesNumber of glasses within a watch; one watch equals 8 glasses
16 CommentCommentLife on board
17 CourseCourseCourse of the ship during the past 24 hours
18 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
19 CommentCommentAny remark, found in the logbook on this particular day, about any biological item
20 CommentCommentOther remarks, that were not possible to put in the other remark fields
21 Comment 2 (continued)Comm 2Other remarks
22 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.
23 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.
24 Wind force descriptionWind force descrAll reported wind forces on this day
25 Present weatherwwWeather description
26 Precipitation descriptionPrecip descr
27 State of the sea descriptionState sea descr
28 Cloud typeCloud type
29 ClearnessClearness
30 GustsGusts1 If wind gusts are reported
31 Precipitation/RainRain1 If rain was reported
32 FogFog1 If fog was reported
33 Snow typeSnow1 If snow was reported
34 ThunderThunder1 If thunder and or lightning was reported
35 HailHail1 If hail was reported
36 Sea iceSea ice1 If sea-ice or icebergs were reported
37 IdentificationIDCLIWOC 2.1 line number
Size:
836 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...)

Image no/name
(Identification Number of the ...)

Landmark
(Name of first landmark)

Bearing
(Bearing of the first landmark)

Distance [arbitrary units]
(Distance to the first landmark)
10 
Landmark
(Name of second landmark)
11 
Bearing
(Bearing of the second landmark)
12 
Distance [arbitrary units]
(Distance to the second landmark)
13 
-
(1 If position is considered t...)
14 
Watch
(Name of the period of 4 hours...)
15 
Glasses
(Number of glasses within a wa...)
16 
Comment
(Life on board)
17 
Course
(Course of the ship during the...)
18 
Distance [arbitrary units]
(Distance travelled during the...)
19 
Comment
(Any remark, found in the logb...)
20 
Comment
(Other remarks, that were not ...)
21 
Comm 2
(Other remarks)
22 
Decl [deg]
(It is generally accepted by t...)
23 
Wind dir descr
(All reported wind directions ...)
24 
Wind force descr
(All reported wind forces on t...)
25 
ww
(Weather description)
26 
Precip descr
27 
State sea descr
28 
Cloud type
29 
Clearness
30 
Gusts
(1 If wind gusts are reported)
31 
Rain
(1 If rain was reported)
32 
Fog
(1 If fog was reported)
33 
Snow
(1 If snow was reported)
34 
Thunder
(1 If thunder and or lightning...)
35 
Hail
(1 If hail was reported)
36 
Sea ice
(1 If sea-ice or icebergs were...)
37 
ID
(CLIWOC 2.1 line number)
1756-10-25T12:0049.80-4.52612.0MCC_20_787_00031VM8W 1/2 Z24.00KOERS EN VERHEID SINDS DE PEILING VAN T EILAND WIGHT. NAMEN AANVANG MET ONS BESTEK. HET LIJKT ER OP DAT DE DAGEN LOPEN VAN DE DAGWACHT TOT DE VOLGENDE DAGWACHT, WANNEER ER GESPROKEN WORDT VAN DEHW OF S NACHTS DAN GAAT HET DUS EIGENLIJK OM DE VOLGENDE DAG, MAAR IN DE RECORDS EN HET JOURNAAL WORDT HET WEL BIJ DEZE DAG GEREKEND (DUS NIET DE VOLGENDE DAG)-18ONO-OTNAFNEMENDE KOELTEDIKKE DIJSIGE LUCHT0000000169301
1756-10-26T12:0048.97-6.90616.7MCC_20_787_0003VM8WE VERMISTEN ONZE MAET JAN DE KOKWZW 1/2 Z26.50-18ONO-OTNFRISSE MARSZEILSKOELTEREGENDIKKE OVERDRIJVENDE LUCHT0100000169302
1756-10-27T13:0047.88-8.88716.7MCC_20_787_0004VM8ZW 1/2 W25.00-19OZO-OGEMENE MARSZEILSKOELTEDIKKE REGENACHTIGE LUCHTKLAARDE EEN WEINIG OP0000000169303
1756-10-28T13:0046.18-11.1014112.3MCC_20_787_0004VM8ZW 1/2 Z35.00-17ZZODUBBELDE GEREEFDE MARSZEILSKOELTEREGENDIKKE LUCHT0100000169304
1756-10-29T13:0046.00-12.2520826.8MCC_20_787_0004VM8W12.00WARE BEKOMEN BREEDTE IS DE RUIGE BEVONDEN BREEDTE-17Z-ZWSTORMREGEN0100000169305
1756-10-30T13:0046.23-12.601742.0MCC_20_787_0004VM8NWTN6.50-17ZZW-ZTWAFNEMENDE COUWEEW: REGENEW: DIKKE BUIIGE LUCHT1100000169306
1756-10-31T13:0045.30-14.2211810.0MCC_20_787_0004VM8ZW 1/2 W22.00-17ZOFRISSE GEREEFDE MARSZEILSKOELTEREGEN BUIEN1100000169307
1756-11-01T13:0043.97-15.471182.9MCC_20_787_0005VM8ZWTZ24.00-17ZOAANNEMENDE KOELTEREGENDIKKE DONKERE LUCHT0100000169308
1756-11-02T13:0043.93-16.1316313.1MCC_20_787_0005VM8WTN7.50-17ZFRISSE DUBBELDE GEREEFDE MARSZEILSKOELTEGOED WEERHOGE ZEE0000000169309
1756-11-03T13:0042.78-17.057310.0MCC_20_787_0005VM8ZWTZ18.00-17OTZ-OFRISSE GEREEFDE MARSZEILSKOELTEREGEN BUIEN1100000169310
1756-11-04T13:0040.73-18.15759.3MCC_20_787_0006VM8ZZW32.00-15OGEREEFDE MARSZEILSKOELTEREGENBUIIGE LUCHT1100000169311
1756-11-05T13:0038.62-19.289810.0MCC_20_787_0006VM8ZZW34.00-15OZOFRISSE GEREEFDE MARSZEILSKOELTEREGENBUIIGE LUCHT1100000169312
1756-11-06T13:0037.45-20.171332.0MCC_20_787_0006SINTE MARIE (GIS)WTZ44VM8ZWTZ19.00-13ZO-ZOTZAFNEMENDE COUWEBUIEN EN WEERLICHT1000100169313
1756-11-07T13:0036.80-20.971334.6MCC_20_787_0006VM8ZW 1/2 Z15.00-13ZO-ZOTZLABBER BRAMZEILSKOELTEMOOI WEER0000000169314
1756-11-08T13:0035.55-21.13554.6MCC_20_787_0006VM8Z 1/2 W20.00-13O-ONOGEMENE BRAMZEILSKOELTEMET BUIENEEN WEINIG REGEN1100000169315
1756-11-09T13:0034.15-21.133584.6MCC_20_787_0006VM8Z21.00-13N-NTOGEMENE BRAMZEILSKOELTEGOED WEER0000000169316
1756-11-10T13:0032.48-21.133374.6MCC_20_787_0007VM8Z25.00-12N-NTWLABBER BRAMZEILSKOELTEGOED WEER0000000169317
1756-11-11T13:0030.92-21.132474.6MCC_20_787_0007VM8Z22.00-12W-WTZGEMENE BRAMZEILSKOELTEDIJSIGE LUCHT0000000169318
1756-11-12T13:0030.22-21.072472.6MCC_20_787_0007VM8Z 1/2 O10.50-12WTZLABBER LUCHTJEGOED WEER0000000169319
1756-11-13T13:0029.20-20.302246.7MCC_20_787_0007VM8ZOTZ18.00-12ZW-ZWTWFRISSE MARSZEILSKOELTEREGENACHTIGE LUCHT0000000169320
1756-11-14T13:0027.88-20.153482.6MCC_20_787_0007VM8Z 1/2 O19.50-12WNW-NLABBER EN GEMENE BRAMZEILSKOELTEREDELIJK WEER0000000169321
1756-11-15T13:0026.45-20.48124.6MCC_20_787_0007VM8ZTW23.00-11NNOLABBER BRAMZEILSKOELTEGOED WEERMET REGEN BUITJES1100000169322
1756-11-16T13:0024.48-20.48572.6MCC_20_787_0008VM8Z28.00-11O-ONOLABBER EN STIJVE BRAMZEILSKOELTEREGEN BUITJES1100000169323
1756-11-17T13:0022.93-20.48684.6MCC_20_787_0008VM8Z22.00-11O-OTNBRAMZEILSKOELTEGOED WEER0000000169324
1756-11-18T13:0021.55-20.63354.6MCC_20_787_0008VM8Z 1/2 W20.50-10ONO-NOLABBER BRAMZEILSKOELTEGOED WEER0000000169325
1756-11-19T13:0020.20-20.63802.6MCC_20_787_0008VM8Z16.00VANGEN DE EERSTE VIS GENAAMD STATUS-10NTO-OLABBER KOELTE EN STILTES AVONDS GOED WEER0000000169326
1756-11-20T13:0018.93-20.6314.6MCC_20_787_0008VM8Z18.00-10NNO-NTOLABBER BRAMZEILSKOELTEGOED WEER0000000169327
1756-11-21T13:0017.00-20.63364.9MCC_20_787_0009VM8Z28.00-9NNO-NOFRISSE EN LABBER BRAMZEILSKOELTEGOED WEERENIGE RAVELINGE VAN STROOM0000000169328
1756-11-22T13:0014.93-20.71364.6MCC_20_787_0009VM8Z29.00-9NNO-NOGEMENE EN FRISSE BRAMZEILSKOELTEGOED WEER0000000169329
1756-11-23T13:0013.25-19.84254.6MCC_20_787_0009VM8ZZO 1/2 O29.50-9NNO-NOTNGEMENE BRAMZEILSKOELTEGOED WEER0000000169330
1756-11-24T13:0011.53-18.93374.6MCC_20_787_0009VM8ZZO 1/2 O30.50-8NNO-NOGEMENE BRAMZEILSKOELTEGOED WEERENIGE RAVELINGE VAN STROOM0000000169331
1756-11-25T13:009.83-17.71482.9MCC_20_787_0009VM8ZO 1/2 Z30.50-8NO-NOTOFRISSE EN GEMENE MARSZEILSKOELTEGOED WEER0000000169332
1756-11-26T13:008.87-16.75232.6MCC_20_787_0009VM8ZO 1/2 O20.00-11N-NOTNLABBER KOELTE0000000169333
1756-11-27T13:008.52-16.11344.6MCC_20_787_0010VM8ZO 1/2 O13.50-11NNO-NOLABBER BRAMZEILSKOELTE EN STILTEGOED WEER0000000169334
1756-11-28T13:008.05-15.623382.6MCC_20_787_0010VM8ZO 1/2 O11.00-11NW-NTWLABBER EN STILTEGOED WEER0000000169335
1756-11-29T13:007.52-14.673274.0MCC_20_787_0010VM8OZO 1/2 Z17.00-11NNO-NNWSLAPPE BRAMZEILSKOELTEGOED WEER0000000169336
1756-11-30T13:007.47-14.252382.6MCC_20_787_0010VM8OTZ 1/2 Z8.00-10ZZO-WZWLABBER EN STILTES NACHTS DIKKE DONKERE LUCHT0000000169337
1756-12-01T13:007.20-13.4636215.4MCC_20_787_0010VM8OZO 1/2 O13.50-10VARIABELTRAVAATTRAVAAT UIT T NO MET WIND EN DONDER EN BLIKSEMREGENTRAVATIGE LUCHT0100100169338
1756-12-02T13:006.98-13.0236215.4MCC_20_787_0011VM8OZO8.50-10VARIABELTRAVAATTRAVAAT MET EEN WEINIG WIND UIT T NNO TOT NNW, UITSCHIETENDE WINDENREGENTRAVATIGE LUCHT0100000169339
1756-12-03T13:006.73-12.63352.6MCC_20_787_0011VM8ZOTO 1/2 O8.00-10NOLABBER EN STILTEREGENDIKKE LUCHT0100000169340
1756-12-04T13:006.82-11.79562.6MCC_20_787_0011RIO SERBERANTW3RIO GALINUS, OOSTHOEKOTN 1/2 N31VM8O 1/2 N14.00-12NO-ONOLABBER EN DOOD STILTEREDELIJK KLARE LUCHT0000000169341
1756-12-05T13:006.73-11.50782.6MCC_20_787_0011RIO GALINUS, OOSTHOEKNW31VM8OTZ6.00VOLGENS PEILING BEVONDEN WE ONS 6 MIJL WESTELIJKER ALS WE GEGIST HADDEN. WE GISTEN DAT WE 6,5 MIJL BEOOSTEN (BENEDEN) RIO GALINUS WAREN, TEN ANKER. SCHIP VAART VERVOLGENS LANGS DE AFRIKAANSE KUSTVAN CAITIM (GUINEA) NAAR ZAKKANDE EN HOUDT ZICH BEZIG MET DE SLAVENHANDEL. DE IMAGES 0012 T/M 0037 ZIJN NIET GEBRUIKT, OP IMAGE 0038 DAG 25 MEI 1757 WORDT VERMELD DAT HET SCHIP 289 LEVENDE SLAVEN BIJ ZICH HEEFT-12ONO-OLABBER KOELTE EN STILTEREGENACHTIGE LUCHT0000000169342