1977 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	123.2	120.4	117.7	114.5	111.5	108.9	106.1	103.1	100.5	97.7	94.9	92.5	89.6	86.7	84.5	81.9	79.7	77.4	75.2	72.9	70.8	68.5	66.6	64.5	62.4	60.2	58.2	56.4	54.7	53.0	-9999.0
34	Hudson Bay	165.5	162.5	159.8	156.0	154.5	152.2	147.5	144.2	142.4	140.5	137.7	136.0	133.5	129.0	126.3	123.6	120.9	119.0	117.3	115.1	112.8	110.3	108.5	106.0	103.5	100.7	98.8	96.6	94.3	92.3	-9999.0
36	Hudson Strait	143.7	142.8	140.4	136.7	132.2	132.6	128.7	124.2	119.6	118.4	115.6	112.7	112.9	109.7	107.3	102.7	102.0	97.0	95.6	94.3	92.7	90.5	87.2	83.7	82.6	79.1	78.4	76.2	74.4	72.6	-9999.0
98	Bering Strait	112.3	108.0	105.1	101.3	97.8	96.0	92.8	90.3	86.9	85.0	81.8	79.2	76.0	73.3	70.6	68.3	66.1	63.3	60.3	58.6	56.7	54.0	50.9	48.8	46.8	44.7	42.8	41.2	39.5	37.6	-9999.0
128	Arctic subocean	18.6	16.2	14.1	12.5	10.9	9.2	7.8	6.6	5.6	4.7	4.1	3.5	3.0	2.6	2.1	1.7	1.3	1.2	1.0	0.9	0.7	0.5	0.4	0.4	0.3	0.2	0.2	0.2	0.1	0.1	-9999.0
130	Chukchi Sea	94.6	90.9	87.6	82.8	80.8	78.7	75.2	71.8	69.7	68.2	64.2	61.9	59.0	55.6	53.5	51.8	49.7	45.9	43.2	42.4	40.8	37.5	35.3	33.1	31.4	30.0	28.4	26.8	25.2	23.7	-9999.0
132	Beaufort Sea	125.3	124.0	120.0	116.9	113.2	109.5	107.9	105.3	102.6	98.9	96.7	93.4	90.0	87.9	85.8	82.4	80.8	78.7	75.5	72.4	71.2	69.5	66.8	64.0	61.9	59.6	57.0	55.2	53.0	51.3	-9999.0
134	Arctic Archipelago	75.0	72.0	69.6	66.7	64.1	60.5	57.9	55.6	52.8	50.4	47.9	45.7	43.5	41.5	39.4	37.4	35.3	33.7	31.8	29.9	28.1	26.1	24.1	22.6	21.2	20.0	19.0	17.6	16.3	15.0	-9999.0
136	Foxe Basin	89.9	88.7	85.0	83.3	80.4	77.0	74.4	70.1	68.0	65.5	62.5	60.2	57.1	55.6	52.8	50.6	48.5	46.6	44.1	41.5	39.8	38.0	35.6	33.4	32.2	30.3	28.5	27.0	25.6	24.3	-9999.0
138	Baffin Bay	42.7	39.1	36.6	34.1	32.0	29.6	27.2	25.3	23.5	21.7	19.5	17.3	15.8	14.3	12.8	11.7	10.5	9.4	8.5	7.6	6.7	6.0	5.4	4.7	4.1	3.6	3.2	2.8	2.5	2.2	-9999.0
139	South Greenland	96.0	93.3	89.0	86.3	82.5	78.9	76.2	74.0	71.1	68.0	65.8	61.8	58.4	56.0	54.4	52.9	50.8	48.3	45.9	43.9	41.9	40.0	38.4	36.4	34.2	32.2	30.3	28.7	27.3	26.1	-9999.0
140	Greenland Sea	40.2	37.3	35.4	32.0	29.7	27.7	24.7	21.8	19.7	18.1	16.6	15.1	13.0	11.7	10.3	8.8	8.0	7.0	6.1	5.3	4.6	4.0	3.5	3.0	2.5	2.1	1.8	1.5	1.2	1.0	-9999.0
142	Norwegian Sea	108.8	106.5	101.8	98.4	95.1	93.6	90.7	87.8	84.3	80.1	76.8	75.1	74.8	71.6	68.6	65.5	63.0	59.5	56.3	54.2	52.4	50.6	48.9	46.2	44.5	43.0	41.4	39.5	38.0	35.0	-9999.0
144	Barents Sea	108.7	105.9	103.2	100.0	97.5	94.6	91.2	87.8	84.4	82.2	80.1	75.3	73.2	70.3	68.4	66.3	64.4	62.0	59.8	57.6	54.7	52.3	50.0	47.5	45.3	43.1	41.1	40.2	37.8	36.8	-9999.0
146	Kara Sea	144.9	141.8	140.0	136.8	133.3	132.0	129.3	125.6	123.0	119.2	116.5	114.6	110.9	108.2	106.2	103.6	101.2	97.9	96.1	94.1	91.6	89.0	87.1	84.7	82.6	80.2	77.1	75.0	73.9	71.6	-9999.0
148	Laptev Sea	119.7	117.1	115.4	112.2	108.8	104.5	102.8	100.3	97.4	94.8	90.8	88.4	86.0	82.6	79.7	76.9	74.8	73.2	70.2	66.5	64.3	62.0	60.6	59.1	56.5	54.3	52.7	50.7	48.3	46.7	-9999.0
150	East Siberian Sea	102.0	100.0	94.7	91.4	88.3	85.7	83.1	80.9	79.1	75.6	73.8	71.2	67.2	64.7	61.9	58.4	55.2	53.2	51.4	49.5	46.7	45.3	43.3	40.6	38.5	37.2	35.9	34.5	32.9	31.2	-9999.0
152	Gulf of Alaska	139.6	133.0	128.0	125.4	122.1	120.8	117.2	114.4	109.4	109.9	105.1	102.0	99.2	97.3	94.6	92.2	89.9	88.3	85.0	83.1	79.9	77.0	74.1	71.7	69.2	66.6	64.9	62.6	59.8	58.6	-9999.0
154	Southeast Bering Sea	136.7	130.3	125.9	122.1	121.6	117.1	115.6	110.9	108.2	108.1	103.9	101.0	98.2	95.8	93.6	91.4	89.3	87.2	84.5	81.5	78.1	75.1	72.7	70.3	67.8	65.2	62.6	61.0	58.9	56.7	-9999.0