1974 09 - 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	93.9	96.7	99.2	102.0	105.1	108.1	111.1	113.8	116.6	119.9	123.0	126.5	129.8	132.7	135.9	139.5	142.7	146.7	150.0	152.7	156.1	160.1	163.9	167.0	170.6	174.3	178.6	182.1	185.4	189.8	-9999.0
34	Hudson Bay	135.6	138.7	141.0	144.5	149.1	152.6	155.5	159.8	162.4	165.0	166.4	168.5	174.0	177.1	178.2	181.9	185.0	190.4	196.2	195.6	193.6	200.6	206.3	208.8	210.9	214.9	219.6	220.8	220.5	223.6	-9999.0
36	Hudson Strait	115.5	117.2	120.2	125.7	125.2	132.4	135.5	137.4	139.9	145.0	147.9	149.3	151.6	154.8	160.9	160.1	162.4	164.3	173.1	180.5	178.6	177.8	186.5	189.3	195.1	196.6	206.1	204.7	205.9	208.2	-9999.0
98	Bering Strait	84.2	86.0	87.6	90.1	91.9	92.7	95.9	98.4	101.9	106.2	111.9	114.7	117.2	126.0	125.7	126.8	129.6	132.0	135.8	143.5	147.4	148.7	149.6	155.3	161.8	165.2	171.1	176.4	180.6	189.6	-9999.0
128	Arctic subocean	4.3	5.0	6.1	7.3	8.7	10.3	11.6	13.5	15.2	17.0	19.6	22.1	25.1	27.7	30.2	33.5	36.8	40.5	43.2	46.1	49.8	53.2	57.0	62.6	66.5	70.5	75.1	79.4	83.9	86.5	-9999.0
130	Chukchi Sea	67.4	67.7	69.7	73.0	72.0	74.2	76.6	81.6	85.4	89.2	95.8	95.0	101.3	110.5	105.9	108.5	111.3	112.2	119.2	129.3	130.5	134.1	134.2	137.8	144.9	154.4	159.1	163.0	168.7	175.1	-9999.0
132	Beaufort Sea	96.6	99.1	102.5	105.3	108.3	111.4	116.4	117.5	119.0	121.1	124.7	132.1	134.1	134.8	143.6	147.5	150.7	152.2	149.3	149.3	159.8	162.5	165.4	166.9	172.1	175.9	180.4	182.5	186.1	192.9	-9999.0
134	Arctic Archipelago	48.0	51.2	53.4	56.5	60.7	65.0	68.9	72.3	73.9	76.6	79.5	84.9	89.9	91.4	92.0	98.7	104.7	109.5	106.7	102.7	107.8	116.8	123.5	124.1	129.3	133.7	135.3	139.2	145.2	144.4	-9999.0
136	Foxe Basin	61.8	64.9	71.0	72.4	73.5	78.6	81.9	82.4	87.5	95.0	97.4	100.3	106.1	108.1	110.4	108.7	115.7	117.3	128.5	127.1	123.8	126.6	137.5	138.5	145.3	152.0	153.7	160.5	157.3	168.6	-9999.0
138	Baffin Bay	20.4	22.2	24.0	26.8	28.2	29.8	32.5	34.8	37.0	40.4	43.9	47.3	50.6	53.7	58.6	59.5	63.4	68.5	71.5	75.0	79.1	79.6	82.8	88.1	92.2	95.4	100.7	106.9	112.2	117.0	-9999.0
139	South Greenland	69.2	72.9	75.7	76.7	79.2	80.5	83.6	87.3	90.0	92.0	94.4	97.6	100.1	102.8	108.8	112.5	112.5	118.2	119.7	125.8	134.3	140.5	137.4	140.6	142.3	145.9	151.2	156.4	160.8	167.4	-9999.0
140	Greenland Sea	17.4	19.0	21.1	23.0	25.4	27.5	28.9	31.3	34.0	37.2	40.3	42.6	45.4	47.7	52.1	56.9	58.6	63.0	68.2	70.1	74.6	78.8	80.7	83.7	87.1	91.1	96.9	100.8	102.8	107.0	-9999.0
142	Norwegian Sea	77.8	79.6	80.8	85.1	86.3	90.2	93.4	97.7	100.3	104.2	109.2	112.7	116.0	117.1	120.3	123.9	128.0	133.5	136.7	138.8	140.6	142.3	144.6	149.9	156.7	161.9	162.3	165.6	168.7	170.5	-9999.0
144	Barents Sea	78.5	82.6	86.5	87.3	88.0	90.2	91.4	96.1	100.2	103.9	105.8	108.8	115.5	121.1	124.8	125.5	128.0	128.3	134.5	140.6	146.3	151.3	156.4	154.4	155.8	159.9	165.3	169.5	174.0	177.0	-9999.0
146	Kara Sea	113.7	116.7	118.9	123.0	127.6	131.0	133.2	134.6	137.2	141.5	144.7	148.8	150.6	153.1	156.4	161.3	164.4	168.7	171.5	173.1	175.8	179.6	183.4	188.0	191.0	195.1	198.5	202.1	205.5	209.5	-9999.0
148	Laptev Sea	88.0	91.9	94.2	96.6	98.8	102.2	106.1	108.9	112.6	114.3	117.9	120.3	123.8	126.0	128.9	132.1	135.8	141.2	144.9	149.3	153.0	156.3	160.5	162.2	164.8	168.0	172.7	176.6	180.9	184.8	-9999.0
150	East Siberian Sea	74.2	75.3	78.1	77.4	79.4	82.2	85.4	89.6	93.1	98.0	100.4	102.0	107.9	107.0	110.0	114.6	118.5	123.5	130.0	135.6	139.6	142.0	146.0	151.9	157.9	160.4	162.6	165.4	167.8	174.6	-9999.0
152	Gulf of Alaska	109.6	110.6	111.7	115.8	118.0	116.7	119.9	122.4	124.6	128.2	134.3	140.2	140.3	150.1	150.8	149.2	154.2	157.3	156.9	165.7	169.1	167.9	171.7	175.5	181.5	183.3	185.4	192.2	199.3	210.3	-9999.0
154	Southeast Bering Sea	107.2	106.7	108.8	113.9	113.4	115.1	118.4	120.2	124.1	128.4	135.2	137.6	139.1	147.0	146.1	148.5	152.7	153.0	158.6	166.6	164.5	165.4	168.8	176.2	178.4	180.2	187.3	194.5	202.6	204.3	-9999.0