1975 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	117.5	119.4	121.8	124.0	126.4	128.4	123.0	124.8	126.3	128.1	130.0	132.5	133.1	131.0	132.5	134.5	136.4	138.4	140.4	140.1	143.3	145.5	147.5	149.5	151.4	151.8	151.6	157.6	159.6	160.9	-9999.0
34	Hudson Bay	136.0	137.7	139.3	140.9	144.6	144.6	126.6	128.6	129.0	130.7	131.3	132.6	126.5	117.1	119.0	120.6	121.8	122.9	126.7	128.9	107.9	108.2	108.9	109.8	110.4	106.1	97.8	112.0	113.7	113.1	-9999.0
36	Hudson Strait	147.0	149.7	152.5	155.5	156.9	158.5	142.3	144.6	146.4	146.9	148.1	150.4	152.5	176.4	178.9	179.1	185.4	187.1	186.7	187.5	192.4	194.2	196.4	198.7	198.6	200.8	205.1	201.4	200.8	206.4	-9999.0
98	Bering Strait	123.5	126.1	128.5	130.1	131.5	133.7	135.3	137.5	138.6	141.1	144.2	147.6	149.4	151.7	153.7	157.0	158.7	162.0	165.0	166.8	169.6	173.1	174.9	177.6	178.7	180.9	183.0	185.5	187.0	188.1	-9999.0
128	Arctic subocean	84.3	87.3	90.8	95.4	99.7	105.2	108.5	112.4	117.8	122.8	128.0	135.5	139.4	142.9	148.5	153.3	158.9	164.6	169.0	174.6	178.8	186.2	190.1	197.7	200.5	202.7	206.7	208.4	212.2	217.0	-9999.0
130	Chukchi Sea	124.3	127.0	128.6	128.8	131.0	135.2	139.3	143.1	146.9	149.7	152.5	154.8	154.7	156.1	161.9	164.1	167.8	170.0	172.1	171.5	174.1	179.0	183.3	186.3	188.2	189.7	191.7	195.2	197.3	199.4	-9999.0
132	Beaufort Sea	134.1	136.1	138.6	141.3	143.4	144.1	115.1	116.7	117.3	118.5	120.4	122.0	127.2	123.0	122.9	124.6	126.0	127.1	126.6	130.8	132.0	133.1	133.4	134.8	137.6	126.8	116.6	139.8	143.0	144.0	-9999.0
134	Arctic Archipelago	111.3	113.4	116.7	119.3	122.1	124.0	125.6	126.9	129.5	132.2	135.2	139.7	143.5	147.3	150.5	153.3	155.5	157.0	160.1	164.7	169.2	172.3	172.5	173.8	177.0	179.6	172.3	182.0	185.4	190.3	-9999.0
136	Foxe Basin	124.9	126.9	129.2	132.4	135.4	138.0	140.0	141.3	142.6	143.9	148.9	151.5	156.4	160.7	163.7	167.4	170.8	172.7	175.7	176.5	179.2	182.4	184.0	182.8	185.3	188.3	187.8	187.1	192.5	197.1	-9999.0
138	Baffin Bay	100.9	102.1	106.4	110.0	114.9	120.6	125.6	128.9	132.4	137.0	141.2	143.7	148.9	153.4	157.1	161.2	164.6	165.8	168.6	171.6	176.5	183.3	190.0	193.4	194.5	196.6	200.4	201.9	206.5	208.3	-9999.0
139	South Greenland	106.8	107.2	109.9	112.7	118.1	121.3	125.2	126.6	129.6	134.4	133.6	135.2	138.7	139.3	141.4	142.7	143.9	146.0	149.2	151.9	155.4	157.2	162.3	164.5	166.2	169.1	171.5	172.4	176.1	180.4	-9999.0
140	Greenland Sea	97.8	98.2	102.9	107.1	113.5	118.9	123.1	126.3	129.9	133.0	136.2	140.7	145.0	149.4	154.4	159.6	162.2	165.4	166.6	170.4	173.9	177.9	181.1	191.5	195.2	196.4	203.7	207.0	209.3	213.8	-9999.0
142	Norwegian Sea	74.7	76.0	77.1	78.0	79.3	80.5	81.9	83.3	84.8	86.8	87.8	89.2	90.8	92.3	92.7	94.4	95.7	97.0	97.0	96.5	99.0	99.2	100.7	101.8	102.9	103.5	87.1	107.7	108.0	109.0	-9999.0
144	Barents Sea	84.0	84.5	87.2	88.8	81.4	80.2	83.2	84.1	85.3	86.0	88.2	90.2	85.2	99.3	103.6	104.6	106.3	108.2	110.0	108.3	96.8	98.2	99.7	101.7	102.1	102.6	100.4	96.4	98.6	99.8	-9999.0
146	Kara Sea	109.1	111.0	112.6	114.7	117.6	120.3	114.2	115.4	117.2	118.7	120.2	122.6	122.2	113.7	112.9	115.4	116.9	118.1	119.3	116.8	139.9	142.3	144.2	145.3	146.9	149.3	153.0	163.1	164.1	164.4	-9999.0
148	Laptev Sea	125.5	128.2	131.3	134.5	137.1	139.4	142.3	143.9	144.8	145.6	147.5	150.1	152.6	151.5	153.8	154.5	157.0	159.9	161.9	155.4	150.7	153.4	155.8	158.8	162.0	165.2	168.7	161.4	163.2	164.8	-9999.0
150	East Siberian Sea	119.5	122.0	124.0	126.0	129.2	131.0	131.7	134.0	136.2	138.8	142.9	146.9	149.5	153.2	154.5	156.7	158.2	161.9	165.7	167.3	169.2	170.9	174.1	176.5	180.2	183.4	185.4	184.2	186.6	188.7	-9999.0
152	Gulf of Alaska	106.9	109.0	112.5	113.9	111.8	113.8	115.8	118.0	117.3	119.4	122.0	126.3	127.9	126.9	128.2	129.9	130.9	135.1	139.3	141.0	141.1	143.5	144.5	146.7	146.2	147.9	150.0	151.4	151.8	152.3	-9999.0
154	Southeast Bering Sea	137.6	141.1	142.2	138.6	139.2	138.4	147.6	152.8	152.3	154.3	158.0	160.0	157.5	151.9	154.4	159.1	164.0	174.3	169.6	160.4	164.6	168.7	171.1	173.3	171.8	175.1	178.8	181.7	182.3	183.2	-9999.0