1957 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	126.6	128.8	131.2	133.8	136.0	137.6	140.6	143.3	145.2	147.2	149.3	151.2	150.7	151.2	153.6	156.0	158.4	160.6	162.3	158.9	161.0	163.0	165.1	166.9	168.7	169.0	166.4	168.2	170.4	172.3	-9999.0
34	Hudson Bay	138.1	140.5	140.2	141.4	143.4	145.4	149.8	152.1	153.9	155.7	156.3	158.7	161.1	161.0	161.9	163.3	165.7	165.7	159.7	125.7	134.5	133.9	134.8	135.4	135.1	125.2	120.9	127.1	127.0	130.1	-9999.0
36	Hudson Strait	148.9	151.9	154.2	156.9	157.5	158.1	158.8	161.5	162.9	162.1	164.3	170.2	175.2	179.0	181.6	183.4	182.7	186.0	186.0	185.6	191.2	195.5	198.0	197.7	196.3	175.1	140.8	197.3	202.8	207.4	-9999.0
98	Bering Strait	121.7	123.6	126.2	129.1	130.8	131.7	134.3	137.5	140.1	141.8	143.0	140.1	138.7	148.4	153.4	155.5	157.3	159.4	161.3	161.2	164.4	168.3	170.7	172.9	174.4	176.6	175.4	180.0	184.7	186.7	-9999.0
128	Arctic subocean	85.3	88.1	92.8	96.1	101.2	106.6	112.2	117.4	121.6	126.8	131.7	136.4	139.9	144.5	149.5	155.6	160.0	164.6	171.2	174.0	181.1	188.4	192.4	197.1	201.5	204.2	208.4	214.0	220.0	225.8	-9999.0
130	Chukchi Sea	122.7	125.8	129.2	131.3	132.6	133.3	136.4	138.0	141.8	144.0	145.4	145.5	148.4	155.2	159.3	159.0	158.1	159.7	162.2	163.3	164.7	169.0	171.5	173.7	178.3	183.5	186.1	191.3	195.1	198.8	-9999.0
132	Beaufort Sea	133.0	133.5	135.8	139.0	141.9	144.7	146.7	149.5	152.6	155.3	157.6	158.6	159.5	161.8	163.1	165.0	166.8	169.4	172.7	166.9	161.3	162.6	165.7	167.5	168.8	170.6	157.2	150.8	154.2	156.1	-9999.0
134	Arctic Archipelago	113.2	114.1	116.8	120.6	123.9	127.1	130.6	133.5	135.5	139.3	141.9	143.9	146.1	148.6	149.3	152.3	156.5	160.6	165.6	169.5	172.6	174.5	177.4	181.5	184.2	186.1	186.7	189.2	193.9	198.4	-9999.0
136	Foxe Basin	123.3	125.6	127.3	128.5	130.9	132.9	134.8	138.6	142.0	141.6	146.5	151.2	153.7	157.2	159.2	160.7	162.3	166.9	169.4	170.5	175.4	178.7	180.5	181.0	186.5	189.2	191.4	192.3	194.7	196.1	-9999.0
138	Baffin Bay	100.6	104.1	108.3	112.5	117.5	119.5	122.4	127.0	130.1	136.2	143.0	147.5	150.7	153.5	158.1	160.4	165.1	169.8	173.3	177.6	183.1	185.5	187.0	189.2	193.7	201.3	208.1	214.3	219.8	223.0	-9999.0
139	South Greenland	107.0	110.8	114.7	117.4	116.6	117.0	119.8	124.4	126.2	127.0	129.5	133.3	135.8	139.1	141.0	144.9	148.0	150.4	153.4	156.3	158.7	160.6	161.2	160.9	164.3	169.5	170.3	172.4	172.0	173.6	-9999.0
140	Greenland Sea	98.7	100.9	105.6	110.8	117.3	119.6	122.4	124.9	130.9	135.7	139.9	143.0	145.2	148.4	152.7	155.6	159.1	165.6	173.0	178.9	183.5	187.4	189.6	192.1	192.3	199.9	204.8	211.1	215.8	219.4	-9999.0
142	Norwegian Sea	73.1	74.5	75.5	75.1	68.6	50.1	81.6	83.1	83.7	86.1	87.6	88.5	89.9	91.2	91.4	91.6	91.2	92.4	91.3	81.4	90.9	91.3	92.4	93.0	95.2	96.0	80.8	84.9	86.5	88.5	-9999.0
144	Barents Sea	117.2	120.8	123.8	123.3	123.1	123.1	127.7	134.3	138.0	137.6	138.7	142.4	137.4	142.2	143.1	147.3	146.7	148.6	150.5	144.1	136.4	139.5	142.0	143.6	145.4	146.5	137.2	126.0	127.3	128.3	-9999.0
146	Kara Sea	137.6	139.8	142.5	145.6	147.7	148.8	150.2	151.3	152.0	154.0	156.0	158.2	153.8	146.3	148.7	151.7	154.6	156.0	158.8	163.4	164.0	165.6	167.5	169.6	171.7	173.4	172.4	171.2	172.4	172.7	-9999.0
148	Laptev Sea	125.4	127.4	129.7	132.8	135.7	138.9	142.1	145.2	146.9	148.4	151.1	153.3	154.9	156.6	158.4	160.3	163.1	166.4	169.6	172.3	174.7	176.5	179.2	181.1	183.3	185.1	187.3	188.7	190.3	192.5	-9999.0
150	East Siberian Sea	118.3	121.0	124.2	126.6	129.6	132.3	135.3	138.1	140.3	142.4	144.4	146.0	149.1	152.2	155.3	158.1	160.6	162.6	164.7	166.4	168.7	171.4	173.8	176.4	179.0	181.5	184.0	186.3	187.7	189.8	-9999.0
152	Gulf of Alaska	107.3	108.6	111.1	113.9	114.9	113.8	116.7	120.2	122.0	124.2	125.2	125.3	124.6	127.8	131.3	132.4	134.4	136.6	137.3	134.4	138.7	141.7	143.6	144.6	146.1	146.7	146.1	149.9	153.5	155.8	-9999.0
154	Southeast Bering Sea	112.2	112.4	115.9	117.7	115.4	108.7	115.3	120.8	123.3	124.6	124.7	100.5	74.7	116.6	136.2	135.6	136.7	138.1	134.7	112.1	128.6	146.5	147.2	147.3	149.7	147.5	118.8	136.9	157.5	159.5	-9999.0