1987 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	118.1	120.1	122.3	124.1	123.1	121.5	123.7	125.7	127.4	129.4	131.7	132.2	130.0	131.9	133.8	135.6	137.6	136.2	135.8	142.3	144.1	146.3	147.7	149.6	150.7	147.1	156.9	158.7	160.5	162.2	-9999.0
34	Hudson Bay	134.2	135.2	136.3	126.2	107.9	122.5	123.5	125.7	127.7	130.2	131.1	124.1	116.3	117.1	116.5	117.0	117.8	98.1	91.5	103.2	104.4	105.9	108.1	110.1	110.4	107.6	111.4	111.5	113.0	114.7	-9999.0
36	Hudson Strait	142.6	147.2	152.1	155.3	155.4	139.3	140.4	141.7	145.4	150.4	153.0	156.6	172.6	174.1	181.3	176.4	175.0	126.9	129.0	184.4	182.3	191.6	190.5	196.4	201.5	203.1	203.7	202.8	203.1	202.5	-9999.0
98	Bering Strait	121.9	123.4	126.3	129.2	132.3	133.9	136.0	138.7	140.7	142.4	146.4	148.9	152.5	154.3	156.1	158.7	161.7	164.3	166.0	167.6	169.8	172.1	173.8	175.8	178.8	179.0	180.3	182.1	183.4	184.7	-9999.0
128	Arctic subocean	85.9	90.2	94.2	96.8	100.5	104.6	109.6	115.1	120.2	126.3	129.0	134.3	141.0	142.4	149.1	154.1	160.9	166.5	171.0	174.5	176.5	182.0	189.2	194.6	197.5	207.1	210.5	214.0	218.0	222.8	-9999.0
130	Chukchi Sea	121.4	123.7	128.6	134.3	137.6	138.1	140.0	143.1	145.7	148.4	151.4	154.6	156.8	159.7	161.2	163.7	167.2	171.0	173.1	175.4	178.0	181.3	184.0	185.2	187.9	190.2	190.7	191.7	194.8	193.6	-9999.0
132	Beaufort Sea	132.0	133.4	137.3	138.5	131.6	112.5	115.7	117.3	119.5	121.0	122.1	124.2	121.4	121.0	122.5	124.7	127.6	131.7	129.1	129.2	130.7	133.3	135.8	136.9	135.0	129.9	138.7	140.7	140.7	141.6	-9999.0
134	Arctic Archipelago	110.5	114.7	118.3	121.1	123.0	123.8	129.6	132.2	134.1	136.4	139.2	143.9	146.6	147.9	148.4	150.6	153.2	157.2	161.0	163.8	167.8	170.9	175.5	178.4	181.0	185.5	186.2	188.7	192.2	193.4	-9999.0
136	Foxe Basin	123.0	124.7	128.8	131.0	134.4	137.8	137.9	145.0	147.6	150.5	152.5	154.7	155.4	159.7	163.4	162.3	163.7	167.6	171.3	172.0	176.4	180.3	182.5	186.7	190.7	188.6	196.8	199.7	200.4	202.3	-9999.0
138	Baffin Bay	103.7	105.6	106.4	109.0	114.0	120.3	123.5	128.4	132.9	135.1	139.6	144.7	147.8	151.4	156.2	160.3	164.2	168.9	172.4	175.7	179.8	186.0	188.2	191.9	197.8	200.7	205.5	211.8	215.9	219.3	-9999.0
139	South Greenland	114.5	113.1	111.9	114.5	121.4	125.5	126.9	130.6	132.9	136.2	140.5	139.7	140.8	145.0	146.3	148.9	151.8	153.3	154.7	157.4	162.8	164.0	162.3	166.9	170.2	171.7	177.5	181.0	181.3	182.6	-9999.0
140	Greenland Sea	101.0	104.5	106.1	106.7	111.2	116.7	120.2	125.3	129.3	131.0	135.3	142.3	141.5	146.8	150.3	154.2	162.4	167.3	167.3	167.2	171.4	176.3	182.3	183.4	189.4	199.0	204.1	207.5	211.7	216.9	-9999.0
142	Norwegian Sea	73.8	75.2	77.8	78.5	80.0	81.8	82.2	85.2	86.1	86.8	87.0	87.4	89.3	91.0	91.2	93.6	95.5	97.1	97.1	99.5	100.7	100.1	100.7	102.3	104.6	93.2	105.0	107.2	108.1	108.2	-9999.0
144	Barents Sea	92.9	93.9	96.1	98.2	99.4	92.0	96.1	98.3	99.2	100.6	100.4	101.1	111.5	112.8	116.7	116.9	117.9	119.5	120.1	110.2	111.4	111.8	111.4	112.2	114.2	116.3	109.8	110.3	110.8	113.4	-9999.0
146	Kara Sea	110.6	113.5	115.5	122.3	124.2	114.3	115.4	115.9	115.9	117.2	119.9	119.9	111.2	113.6	115.4	116.8	118.0	119.2	117.4	137.0	137.8	139.8	140.8	141.9	141.2	126.3	159.5	161.9	164.0	165.2	-9999.0
148	Laptev Sea	127.3	129.2	131.9	134.3	136.0	138.8	141.1	143.4	146.1	148.4	150.3	152.2	150.4	152.4	154.5	157.9	160.4	162.9	165.6	155.8	158.2	160.0	160.9	162.6	163.4	164.8	159.6	160.8	163.1	165.9	-9999.0
150	East Siberian Sea	118.7	121.1	122.5	125.5	129.2	132.9	135.8	137.9	140.2	142.9	145.0	147.8	151.8	154.3	157.2	159.2	161.7	164.2	166.5	169.5	171.2	172.7	171.9	174.9	179.3	181.7	181.5	183.7	186.3	188.3	-9999.0
152	Gulf of Alaska	107.6	109.4	109.4	110.8	114.7	116.8	119.0	120.7	121.2	121.6	124.0	125.8	127.4	127.8	130.3	132.5	135.0	136.5	138.4	138.6	139.9	141.0	142.5	144.3	146.2	147.2	150.4	152.2	150.5	152.0	-9999.0
154	Southeast Bering Sea	110.2	111.7	112.3	113.2	114.9	119.5	124.3	126.3	128.2	128.8	137.9	139.7	140.7	140.0	142.5	144.8	146.3	147.4	149.3	151.6	152.2	153.0	154.4	157.0	158.5	156.4	159.7	160.9	162.1	161.6	-9999.0