Citation:

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

Project(s):

Climatological Database for the Worlds Oceans: 1750-1854 (CLIWOC)

Funding:

Fifth Framework Programme (FP5), grant/award no. EVK2-CT-2000-00090 : Climatological Database for the Worlds Oceans: 1750-1854

Coverage:

Median Latitude: 14.653056 * Median Longitude: 83.525833 * South-bound Latitude: 11.770000 * West-bound Longitude: 79.780000 * North-bound Latitude: 20.830000 * East-bound Longitude: 90.460000

Event(s):

Swallow_17520124_NMM_ADM/L/S567 * Latitude Start: 20.830000 * Longitude Start: 88.010000 * Latitude End: 11.080000 * Longitude End: 80.160000 * Campaign: * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Swallow (Sloop), Start of voyage: 1752-02-04, End of voyage: 1752-03-11, Voyage: to Fort St Davids Road, 1st Observer: Henry Speke (Captain), 2nd Observer: John Kestell (1st Officer/Master), Company: Royal Navy, Other ship information: 10G 272BM

Parameter(s):

#	Name	Short Name	Unit	Comment
1	Date/time start	Date/time start
2	LATITUDE	Latitude		Geocode
3	LONGITUDE	Longitude		Geocode
4	Wind direction	dd	deg	Wind 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.
5	Wind speed	ff	m/s	calculated from the descriptive terms of wind force given in the observations
6	Landmark	Landmark		Name of first landmark
7	Bearing	Bearing		Bearing of the first landmark
8	Distance to landmark	Distance	arbitrary units	Distance to the first landmark
9	-	-		1 If position is considered to be coastal (in port or near coastal disturbances)
10	Course	Course		Course of the ship during the past 24 hours
11	Distance	Distance	arbitrary units	Distance travelled during the previous 24 hours
12	Declination	Decl	deg	It 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.
13	Wind direction description	Wind dir descr		All reported wind directions on this day. The wind direction is the direction that points to where the wind comes from.
14	Current direction description	Cur dir descr		Direction of the current. This direction points to where the current is flowing towards to.
15	Current speed description	V descr
16	Wind force description	Wind force descr		All reported wind forces on this day
17	Present weather	ww		Weather description
18	Precipitation description	Precip descr
19	Clearness	Clearness
20	Gusts	Gusts		1 If wind gusts are reported
21	Precipitation/Rain	Rain		1 If rain was reported
22	Fog	Fog		1 If fog was reported
23	Snow type	Snow		1 If snow was reported
24	Thunder	Thunder		1 If thunder and or lightning was reported
25	Hail	Hail		1 If hail was reported
26	Sea ice	Sea ice		1 If sea-ice or icebergs were reported
27	Comment	Comment
28	Identification	ID		CLIWOC 2.1 line number

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

666 data points

Data

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

1 Date/time start	2 Latitude	3 Longitude	4 dd [deg] (Wind direction (from which th...)	5 ff [m/s] (calculated from the descripti...)	6 Landmark (Name of first landmark)	7 Bearing (Bearing of the first landmark)	8 Distance [arbitrary units] (Distance to the first landmark)	9 - (1 If position is considered t...)	10 Course (Course of the ship during the...)	11 Distance [arbitrary units] (Distance travelled during the...)	12 Decl [deg] (It is generally accepted by t...)	13 Wind dir descr (All reported wind directions ...)	14 Cur dir descr (Direction of the current. Thi...)	15 V descr	16 Wind force descr (All reported wind forces on t...)	17 ww (Weather description)	18 Precip descr	19 Clearness	21 Rain (1 If rain was reported)	27 Comment	28 ID (CLIWOC 2.1 line number)
1752-02-04T06:00	20.83	88.01	362	1.0	POINT PALMIRA	WBN	60		S55:00E	60.00	0	NNW, E, SW, WSW, W, VARIABLE			LIGHT AIRS			FAIR	0	a trivial correction was made in this observation	247938
1752-02-05T06:00	20.00	87.98	214	6.7	POINT PALMIRA	N57:00W	69		S3:00W	42.00	0	NBW, ENE, SWBS	S		MODERATE AND LIGHT AIRS			FINE	0	a trivial correction was made in this observation	247939
1752-02-06T06:00	19.27	88.15	362	1.0	POINT PALMIRA	W			S4:00W	71.00	0	SSW, SWBS, VARIABLE	E, N		LIGHT AIRS			FINE	0	a trivial correction was made in this observation	247940
1752-02-07T06:00	18.84	89.31	248	2.6	POINT PALMIRA	W					0	SWBS, WSW	E, N		LITTLE WIND			CLEAR	0	a trivial correction was made in this observation	247941
1752-02-08T06:00	18.42	90.46	23	2.6	POINT PALMIRA	N58:00W	164		S5:00W	56.00	0	W, EBN, WNW, NNE	E, N		LITTLE WIND			CLEAR	0	a trivial correction was made in this observation	247942
1752-02-09T06:00	17.27	90.23	45	6.7	POINT PALMIRA	N29:00W	220		S11:00W	71.00	0	NWBN, NE	E, N		MODERATE			FAIR	0	a trivial correction was made in this observation	247943
1752-02-10T06:00	16.22	88.66	45	2.6	POINT PALMIRA	N8:00W	280		S28:00W	71.00	0	NNW, NE	E, N		LITTLE WIND			CLEAR	0	a trivial correction was made in this observation	247944
1752-02-11T06:00	15.13	85.90	45	6.7	POINT PALMIRA	N8:00E	340		S52:00W	104.00	0	NNW, NE			MODERATE BREEZE			FAIR	0	a trivial correction was made in this observation	247945
1752-02-12T06:00	14.62	84.93	23	6.7	POINT PALMIRAS	N17:00E	376		S67:00W	78.00	0	NE, NNE			MODERATE			FAIR	0		247946
1752-02-13T06:00	14.62	84.61	338	1.0	POINT PALMIRAS	N21:00E	390		W	22.00	0	N, NNW			LIGHT AIRS			CLOUDY AND HAZY	0		247947
1752-02-14T06:00	14.88	84.31	362	1.0	POINT PALMIRAS	N66:00E	432		N29:00W	19.00	0	VARIABLE	N		LIGHT AIRS			HAZY	0		247948
1752-02-15T06:00	15.28	83.99	158	1.0	POINT PALMIRAS	N60:00E	416		N31:00W	23.00	0	SE, CALM, SSE	N		LIGHT AIRS			CLEAR	0		247949
1752-02-16T06:00	15.63	84.60	158	1.0	POINT PALMIRAS	N34:00E	370		N66:00W	48.00	0	CALM, S, SSE			LIGHT AIRS	INTERMITTENT WITH CALMS			0		247950
1752-02-17T06:00	15.75	84.54	113	1.0	POINT PALMIRAS	N34:00E	362		N41:00W	9.00	0	E, ENE, ESE	N		LIGHT AIRS	INTERMITTENT WITH CURRENTS		CLOUDY	0		247951
1752-02-18T06:00	16.00	84.53	124	1.0	POINT PALMIRAS	N34:00E	340		N35:00W	16.00	0	NBE, SEBE	NBE	0.5	LIGHT AIRS			FINE	0		247952
1752-02-19T06:00	16.27	84.25	45	2.6	POINT PALMIRAS	N37:00E	336		N26:00W	18.00	0	SEBE, NE	NBE	0.5	LIGHT BREEZES WITH CALMS			CLEAR	0		247953
1752-02-20T06:00	15.97	83.89	113	2.6	POINT PALMIRAS	N36:00E	357		S31:00W	21.00	0	ENE, ESE	NBE	0.5	LIGHT BREEZES			CLEAR	0		247954
1752-02-21T06:00	15.82	83.67	124	6.7	POINT PALMIRAS	N37:00E	364		S18:00W	10.00	0	E, SEBE		SLACKS	MODERATE	WITH LITTLE WIND		FAIR	0		247955
1752-02-22T06:00	15.60	83.28	23	1.0	POINT PALMIRAS	N36:00E	372		S42:00W	18.00	0	SSE-NNE			LIGHT AIRS WITH CALMS				0		247956
1752-02-23T06:00	15.47	83.16	259	1.0	POINT PALMIRAS	N35:00E	386		S15:00E	8.00	0	ESE, VARIABLE, WBS			LIGHT AIRS AND CALM			HAZY	0		247957
1752-02-24T06:00	14.63	83.40	203	2.6	POINT PALMIRAS	N28:00E	405		S23:00E	58.00	0	WSW, SSW			LITTLE WINDS			CLEAR	0		247958
1752-02-25T06:00	14.37	83.51	135	6.7	POINT PALMIRAS	N27:00E	420		S43:00E	22.00	0	SW, SE			MODERATE BREEZES	SOME CALMS		FINE	0		247959
1752-02-26T07:00	12.95	82.47	112	6.7	POINT PALMIRAS	N18:00E	496		S31:00W	99.00	-1	SEBS, ESE			MODERATE BREEZES			HAZY	0		247960
1752-02-27T07:00	12.23	81.50	360	1.0	POINT PALMIRAS	N20:00E	550		SW	64.00	0	E-N			LIGHT AIRS			CLOUDY	0		247961
1752-02-28T07:00	11.90	79.93	45	6.7	PONDEY CHERRY	WBN	8				0	ENE, NE			MODERATE BREEZES	LATTER PART MODERATE AND CLOUDY	SMALL RAIN	CLEAR	1		247962
1752-02-29T07:00	11.84	79.86	68	2.6	PONDEY CHERRY	W1/2S	3	1			0	E, SEBE, ENE			LIGHT BREEZES			CLOUDY	0		247963
1752-03-01T07:00	11.77	79.78	45	2.6				1			0	E, ESE, W, NW, NE			LIGHT WINDS	VARIABLE			0		247964
1752-03-02T07:00	11.77	79.78						1			0								0		247965
1752-03-03T07:00	11.77	79.78						1			0								0		247966
1752-03-04T07:00	11.77	79.78						1			0								0		247967
1752-03-05T07:00	11.77	79.78						1			0								0		247968
1752-03-06T07:00	11.77	79.78						1			0								0		247969
1752-03-07T07:00	11.77	79.78						1			0								0		247970
1752-03-08T07:00	11.77	79.78						1			0								0		247971
1752-03-09T07:00	11.77	79.78						1			0								0		247972
1752-03-10T07:00	11.77	79.78						1			0								0		247973
1752-03-11T00:00					FORT ST DAVID														0		247974