1973 04 - daily  - mean of NCEP mean Daily Clear Sky Downward Solar Flux at surface, W/m^2.
BasinID	Name	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
0	Pan Arctic	124.8	121.6	118.4	115.0	112.1	109.2	106.6	104.1	100.7	97.5	94.7	91.7	89.3	86.7	84.1	81.6	79.4	77.1	74.8	72.5	70.2	68.1	66.0	63.7	61.9	59.9	58.0	56.3	54.5	53.0	-9999.0
34	Hudson Bay	167.1	164.1	161.8	158.0	155.1	152.3	149.4	148.4	145.9	141.7	138.8	135.0	130.8	127.8	125.3	122.0	120.4	118.6	115.1	113.2	110.4	108.2	106.2	103.4	101.1	98.8	96.7	95.1	92.7	90.9	-9999.0
36	Hudson Strait	149.3	146.0	141.8	140.0	137.1	132.3	129.4	127.1	125.4	122.8	119.7	117.8	114.0	109.1	104.2	102.4	100.4	100.4	95.4	93.1	91.8	86.9	85.2	83.9	81.3	79.0	77.6	77.2	74.2	72.3	-9999.0
98	Bering Strait	110.9	109.5	103.8	100.8	99.3	95.8	93.3	89.6	87.2	84.8	81.5	78.9	77.3	74.7	72.1	68.2	65.8	64.2	61.4	58.3	55.9	52.9	50.3	48.5	47.2	45.5	43.2	41.9	40.7	39.0	-9999.0
128	Arctic subocean	20.0	17.2	15.5	13.4	11.7	9.8	8.3	6.9	5.9	5.0	4.4	3.5	3.0	2.5	2.1	1.7	1.3	1.1	1.0	0.8	0.7	0.6	0.4	0.3	0.3	0.2	0.2	0.1	0.1	0.1	-9999.0
130	Chukchi Sea	94.3	93.4	86.0	83.2	82.1	78.3	74.8	72.0	70.7	67.2	64.8	62.4	59.8	57.5	55.0	52.0	50.0	48.5	45.8	42.1	38.7	36.4	34.8	33.6	32.3	31.1	29.6	28.5	27.6	25.3	-9999.0
132	Beaufort Sea	126.4	123.6	121.1	115.6	113.0	111.6	108.9	106.3	101.2	98.6	93.5	89.7	88.0	86.8	82.3	81.9	79.3	76.0	74.8	70.7	70.4	68.5	65.4	62.3	59.9	58.0	56.0	54.3	52.9	51.4	-9999.0
134	Arctic Archipelago	79.6	74.0	72.7	70.3	66.8	65.0	61.4	59.2	56.1	52.6	50.0	46.0	41.5	39.8	38.0	37.0	35.1	31.8	30.8	29.5	27.3	26.9	24.8	22.0	20.5	19.0	18.1	16.3	15.5	14.5	-9999.0
136	Foxe Basin	93.5	93.5	86.3	84.0	81.6	79.5	76.4	74.0	71.9	70.5	66.6	62.4	61.0	54.0	52.0	49.9	48.7	47.7	42.8	42.6	40.1	37.4	37.6	35.4	33.2	30.6	28.9	27.9	26.3	25.3	-9999.0
138	Baffin Bay	45.4	42.7	39.1	36.2	33.4	30.9	28.5	25.9	23.4	21.7	20.0	18.4	16.9	15.0	13.9	12.6	11.1	9.9	8.8	7.9	7.2	6.3	5.6	5.0	4.4	3.8	3.4	3.1	2.7	2.3	-9999.0
139	South Greenland	97.6	95.8	92.5	88.7	85.2	81.0	77.7	74.4	71.4	68.5	65.6	63.7	61.1	58.9	57.3	55.4	52.6	49.8	47.1	44.9	42.9	41.7	39.1	37.2	35.7	33.9	31.6	29.3	27.8	26.0	-9999.0
140	Greenland Sea	40.5	37.9	35.1	32.0	29.4	27.0	24.5	22.3	20.5	18.5	16.3	14.8	13.7	12.4	10.8	9.6	8.6	7.6	6.6	5.8	5.0	4.3	3.7	3.1	2.6	2.1	1.8	1.5	1.2	1.0	-9999.0
142	Norwegian Sea	107.9	105.0	101.8	98.8	95.6	90.9	88.8	86.3	83.6	80.9	78.0	75.6	72.5	70.1	66.9	63.9	61.7	60.0	57.8	55.9	53.5	49.9	48.5	46.2	44.8	43.2	40.7	39.0	37.7	36.3	-9999.0
144	Barents Sea	106.8	104.3	101.4	98.5	94.8	91.7	89.4	85.9	84.0	81.7	79.0	77.3	74.3	69.6	67.1	65.6	63.3	60.1	58.0	56.1	53.7	52.2	50.0	47.5	45.4	43.3	42.1	40.3	37.9	36.4	-9999.0
146	Kara Sea	148.2	144.1	140.6	137.3	134.2	130.9	128.9	125.9	121.4	118.6	115.9	113.4	111.8	109.2	106.4	103.2	100.8	98.3	96.2	93.7	91.0	88.9	86.3	84.1	82.5	80.6	78.0	75.8	73.7	71.8	-9999.0
148	Laptev Sea	120.1	117.3	114.2	111.3	108.3	105.8	101.7	99.9	96.2	91.5	89.2	85.2	83.1	81.0	78.1	75.9	73.4	71.8	69.5	67.5	64.7	62.0	60.4	58.2	55.3	53.0	51.7	49.7	47.7	46.6	-9999.0
150	East Siberian Sea	104.0	99.7	95.4	92.8	88.8	87.3	86.4	83.9	81.4	78.4	75.4	72.5	68.7	66.3	64.4	60.9	58.9	54.2	51.2	49.1	47.1	45.6	43.6	41.8	40.6	37.6	36.1	35.1	32.7	31.2	-9999.0
152	Gulf of Alaska	134.5	131.4	128.9	125.3	124.1	119.4	117.9	115.1	110.5	107.6	104.8	102.1	101.1	97.0	95.6	91.3	88.0	87.8	84.5	82.4	79.5	76.6	73.0	70.2	68.9	66.4	63.9	63.4	61.7	60.4	-9999.0
154	Southeast Bering Sea	132.8	131.2	128.6	124.6	121.5	118.2	117.8	111.9	110.2	107.6	106.1	103.2	101.5	98.7	93.3	90.6	89.4	87.5	84.6	79.9	76.7	74.2	71.4	68.5	68.0	65.4	64.1	63.1	61.9	59.2	-9999.0