1977 02 - daily  - mean of NCEP mean Daily Clear Sky Downward Longwave 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	141.1	143.2	143.9	141.7	142.1	144.8	148.7	149.8	148.3	147.3	148.1	148.5	151.0	155.0	158.0	155.3	149.6	146.5	149.5	149.9	150.4	147.0	145.8	147.3	148.0	144.8	144.1	146.1	-9999.0	-9999.0	-9999.0
34	Hudson Bay	165.7	167.3	172.0	156.3	148.9	158.3	175.2	186.0	187.8	182.8	185.8	179.4	170.2	162.3	167.9	175.3	172.9	168.5	165.8	160.7	169.1	159.6	164.3	178.5	185.0	179.5	174.5	172.6	-9999.0	-9999.0	-9999.0
36	Hudson Strait	142.6	167.8	157.3	160.0	154.8	159.0	149.9	138.8	147.0	141.2	122.4	120.6	128.0	139.4	142.8	156.6	141.2	132.6	132.4	121.3	130.5	138.5	132.4	127.5	153.3	178.1	187.5	192.3	-9999.0	-9999.0	-9999.0
98	Bering Strait	152.7	163.0	163.6	181.7	188.2	182.2	179.7	175.8	171.2	169.2	160.3	156.4	156.6	169.2	177.6	178.2	174.1	169.9	196.3	197.0	192.9	185.3	176.6	172.3	169.1	162.4	163.5	158.0	-9999.0	-9999.0	-9999.0
128	Arctic subocean	108.9	114.0	121.9	121.4	115.3	110.1	105.0	101.5	94.4	95.5	108.2	111.6	110.9	100.4	95.3	94.8	94.0	97.1	95.0	98.7	94.9	96.3	100.5	118.4	135.1	113.6	96.7	98.8	-9999.0	-9999.0	-9999.0
130	Chukchi Sea	117.4	114.7	126.6	155.3	177.5	176.1	170.1	164.4	154.0	139.6	127.0	125.8	122.6	133.5	151.1	171.1	180.3	182.6	171.0	188.2	184.2	182.9	168.8	163.0	153.9	149.4	140.9	136.9	-9999.0	-9999.0	-9999.0
132	Beaufort Sea	167.2	182.8	184.5	173.1	189.9	195.9	202.9	201.0	197.2	189.3	180.4	177.3	178.1	190.1	199.7	190.3	184.4	180.1	196.3	208.5	204.1	192.5	182.1	169.7	165.7	165.8	172.8	180.3	-9999.0	-9999.0	-9999.0
134	Arctic Archipelago	128.6	126.3	127.9	120.1	122.7	131.6	133.9	126.3	120.7	128.4	135.6	141.8	141.6	143.1	128.0	119.9	128.5	129.7	125.3	126.2	121.8	116.3	111.6	119.3	123.9	123.4	125.2	126.2	-9999.0	-9999.0	-9999.0
136	Foxe Basin	157.5	153.9	147.9	148.2	139.5	130.6	115.8	113.4	110.9	111.6	108.8	112.4	132.4	137.7	136.0	120.7	94.9	98.1	109.0	103.1	97.0	112.2	125.8	115.8	121.9	143.2	147.2	153.7	-9999.0	-9999.0	-9999.0
138	Baffin Bay	111.2	123.8	126.4	121.1	115.7	112.4	110.8	96.2	91.5	94.2	109.6	114.4	113.9	110.8	106.0	92.9	89.1	94.4	97.8	92.3	84.5	84.2	118.9	143.4	138.0	108.1	114.2	111.0	-9999.0	-9999.0	-9999.0
139	South Greenland	127.6	123.4	116.4	125.0	133.8	127.7	128.7	135.2	145.9	153.4	157.5	144.3	132.5	122.7	123.4	119.3	120.8	124.7	121.4	114.5	122.2	137.4	160.6	156.1	151.6	148.8	148.6	161.9	-9999.0	-9999.0	-9999.0
140	Greenland Sea	93.4	99.9	110.9	116.8	114.5	109.4	101.5	100.8	106.7	112.6	126.0	120.9	104.5	102.3	100.5	96.7	94.2	109.7	114.4	108.0	88.7	82.4	108.0	130.0	131.9	117.3	105.0	108.7	-9999.0	-9999.0	-9999.0
142	Norwegian Sea	191.8	193.9	201.9	205.8	205.1	208.3	195.7	187.2	192.9	184.9	178.9	173.7	190.5	199.3	204.9	199.7	191.4	187.6	189.8	195.4	194.3	193.2	191.6	189.5	188.9	196.6	200.2	206.9	-9999.0	-9999.0	-9999.0
144	Barents Sea	171.7	170.1	168.9	161.8	145.0	147.2	155.1	160.5	160.2	161.4	159.0	155.6	158.3	161.7	167.6	170.9	181.6	193.4	189.4	187.0	180.8	173.5	169.0	161.9	160.5	166.4	173.1	169.5	-9999.0	-9999.0	-9999.0
146	Kara Sea	127.2	128.9	131.8	131.8	132.8	138.4	144.3	147.5	142.2	140.2	144.0	151.3	163.6	169.1	165.9	153.9	142.1	142.6	149.4	153.4	157.1	153.0	142.4	140.3	139.5	134.6	131.2	134.7	-9999.0	-9999.0	-9999.0
148	Laptev Sea	134.0	128.6	121.6	116.6	118.6	117.2	116.3	116.6	116.5	117.3	116.0	118.1	122.3	133.0	147.3	152.5	140.0	118.3	111.7	109.7	106.8	108.6	111.9	113.9	117.5	118.6	117.4	119.2	-9999.0	-9999.0	-9999.0
150	East Siberian Sea	112.8	105.7	110.6	119.9	118.5	117.4	117.7	112.0	113.6	118.2	122.6	121.5	123.2	125.1	126.3	131.0	133.1	128.6	123.0	126.4	130.2	130.1	131.6	135.1	129.0	124.9	126.1	126.5	-9999.0	-9999.0	-9999.0
152	Gulf of Alaska	224.5	231.6	216.1	228.6	216.3	220.5	218.6	207.1	207.1	199.2	194.0	200.3	209.2	221.4	214.8	205.6	191.6	201.2	231.4	217.0	220.5	212.2	191.5	191.4	195.4	191.2	190.7	189.4	-9999.0	-9999.0	-9999.0
154	Southeast Bering Sea	204.3	214.9	223.5	227.6	212.6	208.9	207.7	211.6	209.7	209.8	203.1	200.5	195.4	215.4	222.5	216.7	211.8	202.8	221.3	213.0	207.8	207.4	192.6	209.0	196.7	184.4	189.2	187.8	-9999.0	-9999.0	-9999.0