1981 04 - daily  - mean of NCEP mean Daily Clear Sky Upward 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	117.3	119.7	121.8	125.2	126.5	121.0	123.0	125.2	127.4	129.2	132.2	133.0	130.1	131.8	133.2	135.0	136.6	138.0	132.7	140.1	141.9	143.7	144.9	146.9	148.5	143.7	155.2	157.1	159.4	160.8	-9999.0
34	Hudson Bay	133.4	135.9	137.9	143.1	144.1	124.7	126.4	128.9	130.9	132.6	135.4	136.4	119.0	122.1	122.3	123.2	124.9	128.8	128.2	108.0	108.8	108.9	108.7	109.8	112.4	107.3	112.5	114.0	115.6	116.4	-9999.0
36	Hudson Strait	151.4	150.2	155.6	160.7	160.6	141.2	143.1	146.4	148.1	147.6	153.5	156.0	176.6	174.7	183.9	186.7	188.4	190.4	188.5	188.8	188.5	186.4	188.8	192.1	192.6	190.2	196.8	199.1	201.2	199.6	-9999.0
98	Bering Strait	123.8	125.8	128.9	131.7	134.3	135.1	137.7	139.5	141.7	143.1	144.8	148.1	152.7	155.3	157.2	159.8	161.5	163.1	163.7	165.6	167.5	169.4	170.7	172.9	174.6	175.7	178.0	179.0	181.2	182.4	-9999.0
128	Arctic subocean	85.8	89.0	94.1	99.1	103.8	107.8	112.3	115.6	119.3	125.5	130.2	134.6	138.5	146.5	153.0	156.3	160.9	163.4	168.7	174.5	178.6	183.9	187.9	194.6	199.7	204.8	210.0	214.0	219.1	224.1	-9999.0
130	Chukchi Sea	113.7	116.5	119.1	122.2	125.7	128.1	129.6	132.4	134.7	132.3	133.6	138.2	143.8	147.6	148.7	151.2	154.4	156.0	158.4	159.5	161.8	163.0	166.5	170.1	171.1	172.8	173.6	172.9	175.0	174.4	-9999.0
132	Beaufort Sea	127.6	129.4	131.5	134.6	132.4	108.6	110.8	113.2	115.6	117.0	122.2	127.8	118.8	119.5	119.5	122.8	123.6	126.6	122.5	120.7	122.9	124.5	125.3	126.2	132.7	136.6	131.7	131.9	133.7	134.3	-9999.0
134	Arctic Archipelago	111.1	113.7	116.5	119.8	123.1	125.7	128.8	131.0	133.7	137.1	141.0	144.6	146.5	148.9	152.6	154.7	156.7	158.4	162.0	163.8	167.3	170.2	171.1	172.6	175.4	178.4	181.8	186.0	188.4	190.1	-9999.0
136	Foxe Basin	127.1	129.8	132.4	135.0	136.6	138.1	142.0	145.6	147.6	149.3	151.7	154.0	158.9	161.6	164.3	166.2	168.7	173.4	176.0	175.1	174.4	176.4	176.7	179.2	182.9	186.0	190.1	194.8	197.1	200.1	-9999.0
138	Baffin Bay	103.2	106.4	111.6	116.1	118.0	122.2	127.2	131.6	135.7	140.5	143.3	146.6	150.0	154.4	152.7	157.1	159.9	163.9	172.7	177.2	177.2	177.9	183.7	188.9	197.0	203.1	208.0	211.9	213.2	213.1	-9999.0
139	South Greenland	115.3	117.5	117.4	117.5	120.8	125.8	129.4	133.3	136.2	138.5	141.7	142.1	141.8	140.8	141.7	144.8	146.6	149.9	155.5	155.8	155.2	157.9	160.5	164.1	166.8	167.4	169.3	171.7	175.4	178.8	-9999.0
140	Greenland Sea	100.5	105.0	107.5	112.8	116.8	120.4	122.6	125.7	131.1	134.9	139.5	143.3	146.8	152.9	151.1	155.6	161.8	162.5	169.6	178.2	180.3	183.9	184.0	190.6	196.6	201.4	206.8	213.4	219.3	221.0	-9999.0
142	Norwegian Sea	75.9	74.7	76.8	79.4	80.1	81.0	82.5	83.4	84.2	84.8	87.5	72.4	90.4	90.9	93.4	95.1	94.8	96.9	98.9	99.2	102.1	103.1	104.5	105.9	107.2	107.7	109.4	111.2	111.4	112.8	-9999.0
144	Barents Sea	94.1	95.1	94.0	100.4	98.7	90.9	92.2	95.5	100.7	100.7	102.8	104.1	111.6	114.0	118.0	118.5	118.2	117.1	118.5	104.7	107.6	108.6	112.4	114.8	117.1	118.8	110.8	111.1	110.5	112.1	-9999.0
146	Kara Sea	109.6	111.9	113.9	116.6	116.9	111.6	112.6	113.5	114.6	116.5	119.7	116.2	110.8	111.6	112.9	114.1	115.4	114.4	101.5	133.7	136.0	138.3	138.4	140.0	137.9	119.6	159.9	161.3	163.5	164.6	-9999.0
148	Laptev Sea	124.7	127.7	130.1	133.5	137.1	139.7	141.8	143.4	145.1	147.1	149.2	151.7	150.1	151.3	152.9	154.5	156.0	157.4	140.6	150.5	152.7	154.7	156.4	157.8	159.5	158.0	156.6	160.1	164.2	166.0	-9999.0
150	East Siberian Sea	118.9	122.5	124.7	126.8	128.9	131.5	134.8	139.3	141.4	142.9	143.9	146.7	150.9	151.7	153.0	155.9	158.6	161.2	163.2	166.7	169.1	172.1	174.3	176.5	178.5	180.9	181.4	183.2	185.0	188.1	-9999.0
152	Gulf of Alaska	107.8	109.7	112.5	115.0	117.2	117.9	119.3	120.5	122.8	125.3	127.3	128.1	130.2	132.4	134.1	135.9	136.0	135.4	133.7	137.8	139.9	141.7	143.5	144.9	145.5	141.6	150.4	150.6	152.5	153.3	-9999.0
154	Southeast Bering Sea	110.9	113.3	115.1	117.8	119.5	118.9	121.4	123.5	124.1	126.8	128.9	125.7	135.1	137.9	139.0	140.6	139.5	137.1	126.7	142.7	144.6	146.9	148.4	149.5	147.3	135.4	154.4	153.4	156.0	155.8	-9999.0