1957 02 - daily  - mean of NCEP mean Daily Downward Longwave Radiation 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	169.9	176.5	177.2	170.9	171.7	170.8	170.8	171.1	172.6	173.5	175.3	177.9	181.8	186.0	182.9	183.3	185.4	182.4	184.0	183.0	175.4	170.5	174.9	177.8	173.9	173.9	176.9	180.1	-9999.0	-9999.0	-9999.0
34	Hudson Bay	150.4	173.9	188.0	174.0	169.3	178.2	171.4	178.6	183.2	180.1	201.2	213.5	202.9	214.8	207.1	198.9	205.1	186.5	183.0	190.3	177.9	172.1	165.7	196.6	206.0	182.0	200.6	213.3	-9999.0	-9999.0	-9999.0
36	Hudson Strait	145.6	139.7	159.9	169.9	155.0	152.3	158.6	173.6	142.1	153.2	129.2	131.3	171.7	190.0	195.2	178.0	177.1	206.8	217.3	189.2	184.1	188.8	192.7	141.3	126.1	186.7	174.9	151.9	-9999.0	-9999.0	-9999.0
98	Bering Strait	230.9	250.0	231.3	209.3	237.4	232.0	221.5	179.8	154.8	144.3	138.4	144.7	162.8	144.2	178.0	159.0	176.7	184.6	224.9	228.7	203.2	186.2	198.8	154.4	143.8	165.2	165.7	195.3	-9999.0	-9999.0	-9999.0
128	Arctic subocean	146.2	142.9	148.9	134.5	129.2	132.6	132.0	130.5	128.9	121.6	126.4	135.3	151.0	143.3	138.7	155.5	146.8	142.3	143.7	141.1	130.8	132.8	122.6	127.1	121.7	126.1	135.9	136.1	-9999.0	-9999.0	-9999.0
130	Chukchi Sea	239.4	253.0	242.8	254.4	243.7	230.1	208.0	154.3	130.2	128.4	129.8	126.5	113.1	110.6	111.9	112.6	125.2	165.9	251.7	256.5	234.2	209.8	184.8	137.0	127.5	126.2	126.1	139.2	-9999.0	-9999.0	-9999.0
132	Beaufort Sea	194.6	221.4	196.5	178.1	185.8	167.8	174.9	181.6	181.5	191.0	189.0	166.6	186.0	198.0	171.2	208.2	173.7	168.5	168.3	167.6	144.3	142.9	142.3	150.4	145.8	171.9	192.4	181.8	-9999.0	-9999.0	-9999.0
134	Arctic Archipelago	183.6	176.4	158.7	144.0	145.7	145.0	146.1	140.4	140.2	155.9	149.0	149.3	148.0	166.1	169.9	177.1	177.5	171.7	148.1	136.4	132.7	140.3	162.1	162.5	151.9	150.1	157.0	150.8	-9999.0	-9999.0	-9999.0
136	Foxe Basin	155.2	151.3	154.6	153.5	150.4	134.1	126.1	131.0	139.5	166.1	165.0	146.1	177.4	214.6	194.6	187.4	183.0	166.8	175.0	195.1	199.4	198.6	188.5	163.5	163.6	160.9	174.8	181.3	-9999.0	-9999.0	-9999.0
138	Baffin Bay	136.7	126.8	126.2	133.3	133.1	127.4	130.0	138.9	145.2	136.6	142.1	154.0	156.4	127.7	155.4	161.3	154.5	132.2	139.8	145.3	137.2	125.7	117.9	119.4	120.8	119.4	121.0	119.7	-9999.0	-9999.0	-9999.0
139	South Greenland	159.1	147.8	147.1	167.1	144.0	145.9	146.1	165.5	150.9	138.8	137.6	141.1	141.7	135.7	134.5	146.0	134.3	125.2	116.4	122.2	128.0	132.1	167.2	171.2	143.6	128.8	144.7	152.4	-9999.0	-9999.0	-9999.0
140	Greenland Sea	156.3	187.8	176.1	139.2	141.7	136.2	137.8	127.6	136.0	138.3	122.2	119.2	118.4	122.6	105.1	122.4	123.8	116.0	106.0	102.6	101.2	104.3	91.0	98.9	103.9	122.4	144.2	134.1	-9999.0	-9999.0	-9999.0
142	Norwegian Sea	248.4	247.0	249.0	267.8	278.0	258.7	237.2	237.1	242.0	228.1	210.2	215.3	210.2	206.7	229.9	264.8	252.4	245.2	255.9	241.8	242.1	222.0	213.9	234.7	236.3	248.5	234.9	252.4	-9999.0	-9999.0	-9999.0
144	Barents Sea	226.6	247.9	244.7	233.3	234.1	255.6	242.8	245.4	243.0	231.0	219.0	205.8	213.4	205.6	220.6	240.3	261.1	255.6	249.9	245.9	255.9	237.1	212.5	212.9	207.7	200.8	213.0	217.2	-9999.0	-9999.0	-9999.0
146	Kara Sea	156.2	152.2	153.7	161.0	165.8	166.3	171.2	177.7	189.5	198.1	202.2	207.4	206.2	211.7	202.8	199.3	203.1	203.2	204.6	204.2	198.5	191.2	192.5	191.3	190.0	188.2	180.6	176.3	-9999.0	-9999.0	-9999.0
148	Laptev Sea	155.1	160.2	160.4	154.3	150.3	140.7	143.2	142.8	146.8	150.3	149.6	151.9	159.9	166.6	163.5	157.3	162.3	162.7	156.9	153.4	148.9	143.7	161.1	175.7	167.8	167.1	164.4	172.1	-9999.0	-9999.0	-9999.0
150	East Siberian Sea	166.2	155.2	204.4	170.6	164.3	167.0	166.9	157.2	151.7	144.3	150.3	165.6	166.7	175.8	160.8	146.0	148.1	156.0	178.9	170.7	166.0	180.3	206.9	212.7	202.1	198.8	182.9	170.8	-9999.0	-9999.0	-9999.0
152	Gulf of Alaska	213.3	243.1	225.7	200.6	224.2	235.5	238.6	215.9	196.1	180.5	169.4	184.2	217.0	189.0	242.8	197.5	239.2	216.3	221.3	216.5	208.9	189.6	198.1	175.2	198.8	211.9	197.8	260.7	-9999.0	-9999.0	-9999.0
154	Southeast Bering Sea	233.4	243.0	244.6	244.8	249.4	269.1	260.9	210.1	217.7	140.7	143.6	165.7	164.3	164.1	178.0	181.3	238.9	273.3	264.2	242.5	217.0	212.8	208.7	168.6	151.4	162.7	162.7	246.5	-9999.0	-9999.0	-9999.0