1977 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	128.0	126.6	131.2	133.1	135.1	136.9	136.3	130.1	131.7	144.7	147.0	149.4	151.5	149.3	144.6	148.6	157.4	160.7	163.6	165.9	164.4	154.9	156.8	167.1	169.0	171.1	173.4	169.2	157.5	162.0	-9999.0
34	Hudson Bay	148.0	145.4	148.0	149.0	150.8	152.1	148.7	142.3	145.7	149.2	150.2	153.8	153.4	128.9	109.4	152.5	153.6	157.1	158.8	159.3	138.2	118.0	166.6	168.8	169.1	170.0	174.8	168.5	139.5	165.1	-9999.0
36	Hudson Strait	150.2	153.4	151.8	155.5	160.5	160.0	164.0	169.0	170.8	172.2	167.8	172.8	175.4	177.5	179.8	180.8	184.1	185.6	184.8	188.4	182.6	175.7	196.9	199.0	200.1	202.5	206.6	208.2	208.9	211.9	-9999.0
98	Bering Strait	126.3	125.2	128.2	129.9	133.0	135.9	138.7	141.5	143.9	145.5	148.7	150.4	153.4	156.0	158.0	159.1	161.6	163.9	166.6	166.7	167.7	164.3	168.7	174.5	177.0	180.6	183.0	186.6	189.0	189.1	-9999.0
128	Arctic subocean	83.9	88.4	93.6	98.3	102.9	105.7	109.2	113.8	120.1	126.2	130.6	134.8	140.1	145.2	148.7	154.6	159.4	162.5	167.0	173.3	178.2	184.6	190.2	193.8	198.0	203.2	209.4	215.3	219.6	222.5	-9999.0
130	Chukchi Sea	127.1	129.4	133.0	135.2	135.7	139.8	142.6	144.7	149.1	152.8	154.1	157.0	158.9	161.0	163.8	165.5	167.5	169.9	172.1	173.9	175.6	178.3	179.9	182.8	187.5	191.1	194.2	196.9	198.6	203.1	-9999.0
132	Beaufort Sea	136.8	132.8	132.4	135.3	136.7	140.0	134.4	119.0	145.9	152.3	154.4	155.3	157.2	154.6	143.5	156.1	159.6	162.0	164.4	166.5	167.7	164.3	158.8	160.3	160.9	163.8	165.4	148.4	143.0	175.3	-9999.0
134	Arctic Archipelago	113.0	116.1	119.2	122.0	124.2	127.6	130.3	131.5	132.6	136.6	140.4	141.3	143.8	146.8	148.1	150.6	154.0	157.8	160.6	165.2	168.8	171.4	173.5	176.4	180.1	182.8	184.4	186.5	187.5	192.6	-9999.0
136	Foxe Basin	125.3	128.3	131.2	132.1	135.4	139.2	139.2	142.5	147.7	145.7	148.2	152.6	155.4	158.4	161.2	161.1	162.7	166.1	169.5	175.3	178.9	182.5	184.4	188.3	191.3	193.3	196.2	196.0	198.4	202.8	-9999.0
138	Baffin Bay	100.3	103.9	108.8	114.2	115.9	116.7	118.9	123.3	129.6	134.2	138.0	143.6	147.8	151.4	156.7	161.9	164.9	168.9	171.1	175.5	178.6	184.5	189.8	194.1	197.4	202.7	206.2	211.3	211.2	214.3	-9999.0
139	South Greenland	110.8	111.6	115.5	119.5	120.8	119.9	120.7	124.7	131.2	134.8	136.8	140.2	143.0	145.7	146.1	148.3	150.1	153.2	155.1	158.2	160.6	163.5	165.6	169.1	171.6	172.6	174.4	176.9	176.6	175.4	-9999.0
140	Greenland Sea	103.1	105.1	109.1	115.6	119.5	118.2	120.1	122.5	127.7	134.3	140.8	144.6	149.3	153.3	157.9	162.5	168.5	172.4	175.2	180.4	182.8	186.1	191.3	196.9	202.1	203.7	209.7	214.7	219.8	219.5	-9999.0
142	Norwegian Sea	75.0	76.3	78.7	80.8	81.2	82.8	85.5	86.3	87.1	89.3	87.7	89.0	90.7	92.1	93.5	95.7	96.9	98.2	99.1	99.6	99.8	91.6	92.6	105.9	107.0	107.3	107.6	108.1	98.8	89.3	-9999.0
144	Barents Sea	118.0	117.2	116.9	119.2	124.3	128.4	131.1	128.1	122.4	134.9	139.7	141.5	141.3	142.1	143.2	143.3	147.5	150.3	152.7	154.0	153.6	137.3	109.2	161.0	162.6	163.0	164.7	144.8	90.7	98.2	-9999.0
146	Kara Sea	132.0	127.4	138.7	139.0	140.1	140.9	137.6	117.8	109.3	147.1	148.8	150.8	152.8	152.7	143.8	129.7	156.9	160.4	163.5	166.5	167.5	145.1	130.7	150.1	151.7	153.7	154.8	147.7	129.2	119.8	-9999.0
148	Laptev Sea	128.8	129.0	131.4	133.8	135.2	137.8	140.2	142.8	144.6	147.3	149.7	152.1	155.1	158.1	160.0	161.4	162.0	166.9	172.5	173.8	175.7	175.7	175.1	179.7	182.1	184.4	186.7	187.4	186.9	187.4	-9999.0
150	East Siberian Sea	120.4	122.2	124.8	126.4	129.5	131.9	134.1	136.9	139.8	142.1	145.0	146.9	149.9	152.5	155.3	157.8	160.4	161.8	165.3	168.8	172.0	174.8	176.7	178.6	181.0	183.1	184.7	186.1	187.2	189.6	-9999.0
152	Gulf of Alaska	106.6	106.3	108.5	110.1	113.8	115.7	116.7	118.2	120.6	122.5	125.6	126.1	130.6	132.2	135.4	134.7	135.3	136.7	137.4	136.4	137.4	128.7	135.5	142.4	144.1	148.3	150.8	153.4	154.8	152.1	-9999.0
154	Southeast Bering Sea	115.2	116.4	120.2	120.5	122.4	125.7	129.1	131.8	130.4	133.1	139.1	141.3	143.9	143.7	144.7	146.0	148.1	147.8	147.4	148.1	147.6	140.3	144.4	154.6	158.2	162.0	162.9	168.0	162.4	159.7	-9999.0