1977 09 - daily  - mean of NCEP mean Daily Clear Sky Downward 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	94.6	97.2	100.1	103.1	105.7	108.7	111.5	114.9	117.3	120.3	123.7	126.3	129.2	133.2	137.5	140.7	144.0	147.4	151.1	154.4	157.7	160.9	163.9	167.9	172.1	176.4	180.0	183.7	187.5	191.5	-9999.0
34	Hudson Bay	138.4	140.7	143.9	147.0	150.1	152.7	155.2	158.7	162.5	165.3	168.3	171.6	171.5	176.0	182.0	184.9	188.2	191.1	194.3	196.3	199.6	203.3	205.3	209.0	213.2	217.0	221.4	224.3	226.8	230.4	-9999.0
36	Hudson Strait	115.2	120.6	122.8	123.1	131.8	135.4	136.8	139.0	140.4	145.6	148.5	154.4	157.6	158.6	164.3	167.8	170.0	172.5	175.2	176.8	179.5	187.2	189.5	197.1	194.1	199.2	203.6	208.0	213.7	212.4	-9999.0
98	Bering Strait	81.4	84.7	86.3	88.1	91.0	96.5	100.4	101.2	103.1	105.8	109.2	114.5	118.4	120.6	125.1	126.2	132.5	134.5	136.8	140.7	144.0	146.6	150.1	155.2	159.9	161.3	164.6	171.2	179.6	180.2	-9999.0
128	Arctic subocean	4.8	5.5	6.4	7.7	9.0	10.4	12.2	13.9	16.2	18.3	20.0	22.7	24.9	27.4	29.1	33.0	35.5	39.8	42.7	46.7	50.9	54.9	58.9	63.9	68.6	73.9	78.9	82.1	86.0	91.1	-9999.0
130	Chukchi Sea	64.1	67.7	69.2	72.5	75.1	81.0	81.7	83.0	85.7	87.7	92.6	101.1	101.8	100.5	104.7	111.5	116.3	115.4	118.5	123.0	126.3	129.0	133.4	139.2	146.6	147.0	148.4	157.4	165.0	167.3	-9999.0
132	Beaufort Sea	98.3	100.7	104.5	104.1	105.7	108.8	112.7	117.8	118.5	121.9	124.7	125.9	130.6	136.2	139.4	141.9	144.1	147.7	151.5	154.6	158.7	161.1	163.7	168.3	173.0	176.7	179.3	183.3	188.5	190.5	-9999.0
134	Arctic Archipelago	52.5	56.0	58.5	59.4	63.7	63.8	67.4	72.4	75.7	80.5	83.4	81.4	87.8	92.9	92.8	93.9	93.6	103.5	108.3	109.7	116.0	122.0	120.1	121.1	125.4	132.5	137.3	140.0	139.7	149.5	-9999.0
136	Foxe Basin	63.0	68.8	71.5	77.9	81.8	85.4	84.7	88.3	88.6	97.1	100.0	105.0	105.8	109.4	114.9	113.8	116.3	115.1	122.4	131.8	132.0	142.5	146.2	146.0	145.5	152.0	157.1	164.8	162.2	160.3	-9999.0
138	Baffin Bay	20.3	21.8	24.3	27.1	29.7	32.5	34.6	36.9	39.7	42.0	45.0	47.6	50.1	52.5	53.7	58.3	62.8	64.5	69.0	75.9	78.9	83.7	88.3	92.3	96.8	101.1	106.8	111.4	114.0	117.8	-9999.0
139	South Greenland	67.4	69.3	70.9	75.5	79.9	83.8	87.3	90.9	92.6	91.1	96.0	95.9	100.3	104.7	110.4	114.3	117.6	121.6	125.2	128.5	133.4	136.7	142.1	147.9	150.6	155.7	156.9	161.3	165.5	171.5	-9999.0
140	Greenland Sea	17.6	19.0	20.6	22.7	25.2	27.4	29.5	32.3	35.2	37.6	39.8	42.6	43.8	47.0	50.7	55.4	59.1	63.2	65.5	70.2	73.9	79.0	82.3	86.6	92.7	97.3	101.8	104.0	109.0	114.2	-9999.0
142	Norwegian Sea	78.0	80.7	84.6	92.4	92.8	92.1	93.9	99.2	103.1	106.1	106.8	110.8	115.2	118.6	120.7	123.4	124.2	127.6	132.1	139.1	142.4	146.5	154.9	154.2	161.7	159.5	163.1	173.6	175.5	178.4	-9999.0
144	Barents Sea	80.4	82.2	86.8	90.4	89.9	96.9	95.5	96.3	100.3	103.4	106.7	112.2	116.8	121.3	124.9	127.5	128.5	130.0	131.6	135.4	141.1	147.5	149.5	156.9	161.3	165.8	168.5	172.4	177.5	179.7	-9999.0
146	Kara Sea	114.3	117.3	120.7	123.9	126.6	128.7	132.1	136.8	137.9	141.7	145.2	146.8	149.9	154.2	159.3	163.3	167.2	170.6	174.4	177.2	178.5	179.9	184.5	187.9	192.1	197.2	199.5	202.5	206.1	210.5	-9999.0
148	Laptev Sea	89.2	91.2	93.5	98.4	100.2	103.3	107.0	108.8	113.4	114.9	118.8	122.4	123.6	126.8	130.8	135.2	138.6	142.8	147.0	150.5	154.7	158.3	158.5	162.3	166.6	171.1	176.3	179.2	182.3	187.7	-9999.0
150	East Siberian Sea	71.4	74.9	78.6	81.1	85.0	87.4	87.8	91.5	93.4	98.1	101.9	104.6	108.8	114.1	118.5	119.9	120.8	123.0	130.6	135.4	138.7	141.7	146.9	150.9	155.2	159.0	164.1	170.9	174.2	177.1	-9999.0
152	Gulf of Alaska	104.9	107.2	110.7	111.7	113.9	118.7	124.5	124.3	125.2	127.8	131.4	135.8	140.4	147.4	147.6	146.5	156.0	158.5	160.5	164.3	167.3	170.5	172.5	179.1	182.3	183.6	187.8	190.5	196.6	199.4	-9999.0
154	Southeast Bering Sea	102.7	105.3	107.1	109.2	113.3	117.8	122.5	122.1	124.1	127.4	131.3	135.8	140.5	144.6	145.6	147.8	155.4	155.2	159.0	164.9	166.5	167.4	170.8	176.2	178.8	180.5	183.2	187.9	196.2	200.6	-9999.0