1963 04 - 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	182.5	177.8	184.0	192.3	197.6	200.7	203.3	205.4	205.8	205.0	204.9	206.2	207.8	209.9	214.9	214.7	209.1	209.4	212.0	214.6	216.9	214.8	211.3	209.4	208.8	211.9	216.4	221.2	220.6	221.1	-9999.0
34	Hudson Bay	211.7	207.4	214.6	214.2	217.7	224.4	238.8	240.8	231.0	233.2	228.8	231.2	232.4	241.0	254.8	261.7	237.2	232.6	240.7	241.3	231.2	222.4	231.5	238.6	235.8	235.8	254.8	262.5	238.9	223.2	-9999.0
36	Hudson Strait	180.4	188.0	147.0	203.2	225.2	235.8	266.9	245.5	246.1	227.7	201.2	191.0	187.6	215.4	224.9	220.3	237.5	263.7	246.2	230.9	243.1	229.8	219.5	225.0	207.1	195.4	201.3	242.4	233.5	204.5	-9999.0
98	Bering Strait	201.5	178.9	202.5	213.5	232.2	217.5	198.4	202.9	211.0	194.3	185.8	193.3	201.0	198.0	212.0	228.2	208.5	201.6	194.8	201.1	242.0	245.2	221.1	203.0	203.7	210.0	224.5	228.4	238.5	245.0	-9999.0
128	Arctic subocean	131.6	121.0	119.2	120.5	122.7	138.6	140.6	137.5	163.6	180.0	208.0	192.5	158.9	162.8	168.9	165.1	161.3	151.1	159.7	154.5	156.4	159.1	142.4	138.2	143.6	144.1	143.7	132.2	136.0	156.3	-9999.0
130	Chukchi Sea	212.2	230.6	236.3	251.4	255.4	234.9	206.8	220.5	173.5	149.2	154.2	158.3	176.1	167.7	181.2	193.5	207.3	220.8	192.1	181.2	201.9	220.9	201.7	190.5	194.3	219.7	218.1	240.1	226.5	216.2	-9999.0
132	Beaufort Sea	188.0	186.0	192.7	220.3	211.9	216.1	205.0	204.7	215.7	211.0	220.5	221.2	222.5	227.4	244.5	246.6	226.0	233.3	220.4	213.1	214.0	238.7	239.2	231.1	236.8	241.0	224.6	222.8	237.3	253.2	-9999.0
134	Arctic Archipelago	149.9	164.8	160.7	158.3	161.8	157.3	169.0	176.3	182.9	203.1	206.0	206.3	205.7	194.1	190.5	192.6	185.0	195.2	210.1	201.4	198.7	201.6	204.8	212.9	210.1	195.9	192.3	168.2	163.9	164.5	-9999.0
136	Foxe Basin	133.4	158.1	173.7	181.3	163.5	181.1	200.2	219.7	228.3	201.8	183.1	182.5	180.9	186.3	212.3	216.3	229.5	219.0	186.1	180.9	186.6	187.7	185.2	193.9	178.0	183.0	209.1	224.9	219.6	204.7	-9999.0
138	Baffin Bay	137.6	122.7	143.7	149.2	162.6	168.5	163.9	140.2	147.3	153.0	156.1	154.7	147.8	144.3	143.7	142.6	134.9	122.9	129.6	131.6	135.7	137.2	133.1	140.8	139.2	149.0	133.0	126.3	124.1	125.9	-9999.0
139	South Greenland	166.8	164.1	195.7	198.2	203.5	187.0	212.1	200.1	172.9	154.9	158.5	163.3	167.4	155.6	160.3	148.9	146.0	155.6	160.2	166.2	152.1	157.5	183.1	176.4	169.8	171.8	164.6	162.4	165.5	171.2	-9999.0
140	Greenland Sea	143.0	140.1	146.2	160.9	155.3	152.1	154.0	132.3	103.7	125.9	155.8	148.6	152.4	136.1	142.3	126.9	120.4	105.2	114.5	123.2	132.1	135.2	168.4	173.1	144.4	130.5	128.5	114.7	106.9	114.6	-9999.0
142	Norwegian Sea	253.9	278.6	253.1	232.4	238.0	260.5	259.5	249.4	226.6	229.1	270.6	278.3	251.1	253.2	263.6	259.6	240.9	234.5	257.7	245.8	238.8	250.5	261.0	257.7	262.8	268.8	283.8	287.0	295.2	276.1	-9999.0
144	Barents Sea	206.5	218.3	219.2	220.4	219.3	206.6	210.5	224.9	223.1	230.7	225.4	235.3	241.4	252.4	245.8	251.6	267.4	240.5	251.3	250.9	245.5	206.6	205.3	216.0	231.6	260.5	267.0	254.3	242.9	262.2	-9999.0
146	Kara Sea	168.2	166.9	179.8	192.0	203.9	215.5	217.1	220.1	228.2	226.9	222.0	211.3	209.9	208.8	211.8	215.8	221.0	225.4	228.9	234.2	232.7	225.9	211.1	203.5	206.4	215.6	222.7	235.9	239.0	230.6	-9999.0
148	Laptev Sea	182.9	169.3	152.0	153.6	160.2	164.2	168.5	179.5	182.9	183.0	191.2	205.4	214.3	212.6	208.5	199.0	196.5	201.1	202.1	205.4	216.1	216.7	217.2	215.9	203.3	195.3	200.8	213.3	216.4	227.0	-9999.0
150	East Siberian Sea	205.4	179.2	200.4	201.5	193.7	197.7	179.2	163.8	159.3	172.6	173.5	176.5	175.9	207.9	218.7	198.7	182.8	175.8	183.7	195.6	191.9	192.6	188.0	197.8	200.7	204.7	205.4	203.3	213.6	234.3	-9999.0
152	Gulf of Alaska	211.8	185.9	197.9	204.0	214.7	203.0	206.2	234.0	259.6	233.8	211.3	217.9	240.2	240.5	239.9	221.2	202.1	189.5	192.8	223.7	267.5	271.2	231.7	216.3	226.1	247.4	261.9	243.4	266.9	239.0	-9999.0
154	Southeast Bering Sea	203.2	196.0	192.6	204.6	196.2	199.5	216.2	254.1	206.1	175.7	162.0	235.7	206.9	197.2	184.4	182.2	180.9	195.0	222.3	261.3	281.9	271.7	242.9	208.9	275.2	236.5	238.5	252.6	231.1	234.0	-9999.0