1948 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	125.9	128.8	129.6	132.2	134.9	137.1	139.2	141.3	143.6	143.1	145.9	148.9	151.5	153.6	155.6	157.7	155.4	155.1	157.5	160.0	161.7	162.9	161.5	154.9	155.1	157.2	159.0	160.7	162.2	162.5	-9999.0
34	Hudson Bay	141.4	144.4	143.9	144.3	147.7	150.5	153.2	154.2	156.1	157.2	157.3	161.2	162.8	164.3	165.6	167.4	157.4	153.4	156.7	159.8	160.2	159.2	143.5	120.3	115.6	116.3	119.5	120.2	119.3	119.4	-9999.0
36	Hudson Strait	148.3	147.8	151.1	157.7	160.3	160.3	166.5	169.0	170.3	172.3	173.2	170.9	174.0	178.9	176.9	184.7	186.4	187.0	184.3	192.1	195.3	197.0	199.6	200.2	198.4	200.8	204.7	203.0	203.8	206.1	-9999.0
98	Bering Strait	124.1	124.7	126.6	128.5	130.9	132.9	134.6	137.1	138.6	142.0	143.7	146.7	147.3	151.9	156.7	160.3	163.2	165.5	166.9	168.3	171.0	174.2	176.4	177.4	177.4	176.7	178.6	181.6	183.1	185.5	-9999.0
128	Arctic subocean	86.5	91.5	96.2	100.0	105.1	109.3	114.4	120.8	125.1	129.7	133.5	137.9	142.2	148.1	153.8	158.8	163.2	166.2	172.8	180.2	184.5	190.0	190.8	194.3	199.9	206.1	208.3	211.8	219.3	223.6	-9999.0
130	Chukchi Sea	121.3	123.3	125.7	129.8	132.6	134.6	136.4	138.4	141.5	145.6	147.0	147.1	150.5	156.5	163.3	165.9	167.9	167.7	170.0	175.5	181.6	184.6	185.7	184.1	183.7	183.6	188.5	191.5	193.7	197.8	-9999.0
132	Beaufort Sea	136.3	138.3	139.8	142.9	145.3	147.0	148.7	150.3	152.4	155.2	160.7	163.1	165.0	164.5	166.8	166.9	159.3	161.4	163.7	164.9	164.8	163.7	154.6	143.9	156.3	159.2	159.4	160.2	160.3	153.5	-9999.0
134	Arctic Archipelago	115.4	118.2	121.3	124.4	128.0	129.7	131.3	134.4	137.8	141.6	144.6	147.3	150.3	153.3	155.8	157.4	160.1	164.4	168.3	172.3	173.1	174.6	173.6	178.1	182.0	183.2	188.0	188.9	190.6	191.2	-9999.0
136	Foxe Basin	125.6	128.6	131.4	135.4	137.9	140.7	144.3	146.6	147.0	149.3	152.1	156.4	159.8	160.5	161.3	166.0	169.2	172.2	173.2	177.6	181.9	186.0	185.7	185.0	184.2	181.9	183.8	188.5	194.7	196.5	-9999.0
138	Baffin Bay	105.3	109.1	112.8	116.3	119.2	122.4	128.3	133.1	135.9	139.0	141.8	147.6	153.6	157.5	161.0	163.1	164.4	166.3	173.1	179.1	184.4	184.1	185.5	188.2	194.3	200.8	198.0	204.7	210.4	217.2	-9999.0
139	South Greenland	109.9	115.7	118.9	121.1	122.5	125.1	127.5	130.7	132.2	131.1	134.8	138.5	140.4	143.0	145.6	146.9	148.8	148.4	148.3	153.2	154.0	155.7	158.1	159.4	164.1	166.8	165.8	168.0	173.9	176.3	-9999.0
140	Greenland Sea	96.9	102.8	107.8	112.9	116.9	120.4	125.3	130.2	135.2	136.6	138.7	142.5	146.6	150.3	153.8	158.9	165.1	170.5	169.2	174.9	180.0	181.9	182.2	183.1	188.6	198.6	203.0	205.5	210.0	217.5	-9999.0
142	Norwegian Sea	65.2	60.8	46.7	76.5	77.8	79.1	81.2	81.9	83.0	81.9	87.2	86.6	88.4	90.8	91.0	75.3	57.6	86.2	87.7	90.2	89.7	90.7	90.8	74.6	84.3	86.8	89.1	90.7	91.4	91.9	-9999.0
144	Barents Sea	111.3	112.2	102.5	112.4	114.4	117.0	118.5	119.8	120.6	92.6	122.6	127.6	132.0	133.5	133.1	135.4	133.2	134.3	136.7	139.0	141.9	143.9	145.6	149.1	151.7	152.6	153.7	153.9	155.9	150.7	-9999.0
146	Kara Sea	131.3	135.2	135.2	136.2	138.3	140.3	141.7	143.6	146.2	144.7	142.9	145.1	148.2	151.1	153.0	154.6	150.4	146.5	148.0	149.5	150.7	152.0	153.9	140.6	133.2	135.9	138.0	140.3	141.3	141.6	-9999.0
148	Laptev Sea	125.1	127.5	130.6	134.1	137.4	139.4	141.1	143.2	145.4	147.7	150.7	153.8	155.1	155.8	158.1	161.1	161.5	162.1	166.1	168.1	171.0	173.7	175.4	177.8	182.6	184.0	184.6	185.7	187.8	189.8	-9999.0
150	East Siberian Sea	121.3	123.0	124.1	126.1	128.8	132.4	134.6	136.6	139.4	142.0	144.3	147.0	151.3	153.3	152.3	153.6	158.4	162.7	165.5	167.9	168.3	169.8	172.5	175.0	177.8	181.6	183.9	184.9	184.8	185.1	-9999.0
152	Gulf of Alaska	110.2	109.8	111.0	113.4	115.0	116.0	117.0	118.6	119.9	120.5	122.5	126.0	126.1	129.3	132.6	136.4	139.0	141.9	142.6	143.2	143.9	145.2	148.7	150.5	150.6	147.9	148.3	151.9	154.0	153.8	-9999.0
154	Southeast Bering Sea	115.3	116.8	119.6	119.6	119.6	119.6	121.8	125.5	126.7	124.9	126.9	129.1	132.0	134.5	142.1	147.4	150.3	151.6	150.6	149.7	152.1	158.1	160.2	156.6	155.4	153.4	156.3	161.2	163.8	161.9	-9999.0