1999 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	128.2	130.7	132.5	133.8	135.6	138.8	141.2	142.2	144.9	146.8	148.9	150.4	151.8	153.5	155.8	156.7	156.6	157.1	157.8	158.1	159.5	161.3	163.3	165.5	165.8	166.8	168.4	170.8	172.2	172.9	-9999.0
34	Hudson Bay	145.6	149.4	147.2	149.2	149.5	157.0	158.3	153.2	155.1	156.7	159.4	159.0	156.3	157.7	160.0	161.4	154.4	147.2	141.1	143.8	140.5	142.5	146.3	145.6	146.7	146.2	146.7	149.7	150.8	147.2	-9999.0
36	Hudson Strait	146.6	149.4	151.8	151.4	153.2	154.9	155.9	156.3	159.4	161.3	165.7	166.2	167.8	167.3	168.4	171.2	171.6	176.2	181.5	179.3	182.8	184.6	185.8	189.3	191.7	193.0	196.2	192.2	193.7	196.8	-9999.0
98	Bering Strait	122.9	126.1	129.4	131.8	133.5	136.1	139.4	142.1	143.6	144.4	146.7	149.6	152.1	154.3	155.3	158.0	158.5	160.4	162.3	163.7	166.2	168.5	171.5	174.5	177.0	179.7	182.0	182.5	178.6	180.2	-9999.0
128	Arctic subocean	80.4	83.9	86.3	90.7	95.3	101.8	106.5	110.7	114.8	119.5	124.4	129.7	134.1	138.2	143.2	148.9	153.4	157.2	162.2	167.0	173.0	176.0	180.9	186.1	191.9	195.4	203.1	208.4	209.9	213.6	-9999.0
130	Chukchi Sea	123.2	125.0	128.7	130.5	132.0	135.0	139.6	142.6	144.7	147.4	150.2	153.1	155.1	158.4	159.4	161.0	161.9	164.9	168.0	170.8	175.3	175.8	179.3	182.8	186.2	188.8	192.3	194.0	194.3	194.5	-9999.0
132	Beaufort Sea	130.7	131.0	135.3	130.6	133.1	141.8	144.3	147.1	150.2	152.7	153.3	154.2	157.3	160.4	161.7	161.9	150.2	146.2	153.9	150.9	153.2	155.2	154.8	156.5	157.5	161.7	164.8	166.4	164.8	164.4	-9999.0
134	Arctic Archipelago	111.1	112.0	113.5	118.4	121.3	123.2	125.9	129.1	133.7	136.4	139.4	140.8	141.4	145.2	148.9	151.6	152.9	156.4	162.0	163.5	167.6	169.6	172.0	175.6	178.7	180.9	185.1	189.0	191.6	193.6	-9999.0
136	Foxe Basin	117.7	125.1	127.1	127.6	131.5	134.8	136.4	136.5	139.6	142.7	144.7	148.7	150.5	151.0	153.1	156.7	161.4	165.5	163.8	168.8	171.0	175.5	180.3	180.2	182.7	186.7	184.2	188.8	193.2	198.0	-9999.0
138	Baffin Bay	98.6	103.5	106.3	109.7	115.6	120.2	124.5	128.4	130.2	134.2	137.8	140.5	142.3	146.9	150.0	153.6	160.8	164.2	166.4	169.4	174.3	176.4	181.6	187.2	192.7	194.0	198.0	201.6	207.5	214.3	-9999.0
139	South Greenland	110.2	113.0	115.9	118.3	121.5	123.8	125.7	130.2	134.7	137.2	138.2	141.1	140.7	143.5	146.5	149.4	152.2	155.4	154.5	154.2	158.8	162.9	165.7	168.8	170.1	170.1	171.8	176.1	178.6	181.4	-9999.0
140	Greenland Sea	95.7	101.9	105.1	108.2	113.5	118.7	123.9	125.6	132.3	136.4	137.9	142.4	147.6	151.5	155.8	161.1	165.6	167.1	170.2	173.5	176.1	178.6	182.8	189.5	194.7	200.3	203.0	209.1	213.0	217.1	-9999.0
142	Norwegian Sea	72.7	74.8	77.2	79.2	79.1	78.6	81.2	83.0	82.7	85.7	87.9	89.9	90.2	90.2	93.1	93.8	95.7	95.6	96.0	98.0	99.9	100.4	101.8	103.1	104.7	105.3	105.7	106.9	110.2	110.7	-9999.0
144	Barents Sea	111.7	113.8	117.1	120.1	123.6	126.9	130.3	130.1	132.5	132.4	135.5	138.5	141.3	145.4	146.4	146.7	148.8	147.0	152.9	149.2	142.9	139.5	141.7	143.9	144.1	145.7	146.6	147.0	148.7	150.2	-9999.0
146	Kara Sea	139.6	142.0	143.5	144.0	144.6	145.2	147.6	147.8	150.2	151.9	153.9	155.2	157.6	156.5	159.2	156.6	158.7	160.8	158.4	156.6	158.7	160.1	161.1	163.2	159.6	158.9	159.1	161.5	162.6	162.6	-9999.0
148	Laptev Sea	127.7	129.3	131.4	133.5	135.7	137.3	139.0	142.6	145.8	148.5	150.2	151.0	151.4	153.6	156.6	159.7	163.0	165.7	168.1	170.7	173.0	175.0	177.2	179.7	181.2	182.9	185.6	187.9	190.2	192.6	-9999.0
150	East Siberian Sea	120.9	123.5	126.1	128.9	131.3	134.0	136.0	138.3	140.9	143.0	145.1	147.7	150.4	152.7	154.7	156.3	158.2	161.2	163.9	166.1	168.7	171.3	171.8	173.9	176.7	179.6	181.1	183.6	185.4	186.6	-9999.0
152	Gulf of Alaska	108.0	111.5	114.7	116.9	116.6	119.0	121.8	124.8	124.6	124.4	125.9	128.1	130.1	131.2	131.2	133.7	133.6	134.8	137.1	138.8	141.5	144.0	145.2	147.1	145.4	137.7	138.2	139.4	155.8	155.0	-9999.0
154	Southeast Bering Sea	129.5	135.7	136.6	130.9	133.6	138.0	144.7	142.4	136.8	130.4	132.9	135.9	138.9	153.6	151.0	154.1	149.0	151.0	153.8	154.6	158.3	160.9	164.0	167.3	159.3	160.7	163.9	164.4	158.4	159.8	-9999.0