1956 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	203.1	203.8	202.7	202.0	202.1	204.1	209.2	212.2	212.2	211.2	207.6	206.0	207.1	210.3	212.4	211.9	213.5	214.9	217.9	215.8	213.3	213.7	214.5	211.2	213.3	214.4	215.2	219.0	220.4	223.8	-9999.0
34	Hudson Bay	222.8	235.0	235.9	240.5	222.6	207.1	204.1	225.8	226.0	240.8	223.9	221.4	239.4	244.4	231.0	239.3	242.2	232.8	242.1	247.8	234.9	219.0	221.2	228.7	214.2	218.9	210.2	203.5	215.0	220.0	-9999.0
36	Hudson Strait	180.9	187.3	191.8	191.6	261.2	260.4	219.7	166.8	178.5	192.1	188.5	192.9	193.2	201.5	200.3	188.2	222.6	238.8	255.2	257.0	257.6	251.4	258.2	237.1	219.6	202.5	226.3	240.0	215.3	216.9	-9999.0
98	Bering Strait	205.4	211.9	204.5	185.4	182.3	188.5	204.8	190.6	206.4	219.9	212.6	210.7	197.6	206.7	195.6	191.5	213.7	218.4	217.0	212.2	210.1	228.0	238.8	236.0	231.8	227.8	223.7	216.7	227.2	240.8	-9999.0
128	Arctic subocean	135.9	133.7	130.8	132.6	133.2	129.1	140.2	145.2	158.2	153.9	142.8	140.0	137.8	166.1	170.8	159.5	160.3	155.8	161.0	156.2	155.5	141.2	134.5	142.1	148.2	141.2	160.2	198.2	185.2	184.4	-9999.0
130	Chukchi Sea	198.1	186.2	155.4	151.8	153.7	159.9	156.6	154.2	182.8	213.4	198.3	197.2	182.8	185.2	178.6	181.4	181.0	192.0	208.0	243.8	238.3	231.3	227.6	246.9	245.2	228.2	239.7	227.6	256.0	284.9	-9999.0
132	Beaufort Sea	187.3	193.3	199.6	185.0	181.1	180.2	205.5	212.8	224.5	212.3	214.8	224.0	221.9	229.6	243.1	226.9	220.2	241.8	231.5	213.7	220.9	217.3	233.2	203.5	208.9	177.0	177.2	198.8	206.4	215.0	-9999.0
134	Arctic Archipelago	162.5	163.9	165.6	169.9	164.0	151.3	168.5	163.6	164.0	168.2	181.5	218.2	223.9	222.8	227.3	237.2	194.6	195.2	226.0	210.0	197.6	204.9	176.1	156.4	153.6	168.0	166.1	187.2	202.1	201.7	-9999.0
136	Foxe Basin	162.7	193.0	183.9	182.6	204.0	252.2	254.2	181.0	203.2	184.2	198.1	201.5	206.5	191.2	187.8	204.5	210.3	189.8	188.3	196.2	207.5	218.4	217.6	203.3	223.2	219.2	222.0	214.7	199.6	198.9	-9999.0
138	Baffin Bay	157.5	128.0	115.5	131.6	136.7	140.6	162.8	190.1	180.7	164.8	134.9	121.9	126.8	139.1	149.4	152.0	175.0	181.5	153.4	141.1	146.0	154.6	158.8	160.3	173.2	164.7	167.5	178.5	170.6	167.1	-9999.0
139	South Greenland	211.5	176.3	198.0	209.0	218.9	198.0	179.3	196.7	201.3	180.2	166.0	169.3	171.6	174.6	181.4	194.0	204.3	211.0	217.5	216.6	218.2	206.3	200.8	212.0	199.6	203.9	209.7	215.1	203.8	198.9	-9999.0
140	Greenland Sea	164.4	153.7	118.0	107.4	114.1	114.8	102.1	125.4	159.4	151.8	157.2	167.1	158.7	143.1	143.8	143.6	128.8	144.9	144.1	132.4	123.1	127.8	129.0	134.1	138.7	143.4	143.1	159.2	165.2	157.5	-9999.0
142	Norwegian Sea	262.8	260.3	228.3	218.0	212.8	211.2	217.7	253.9	260.1	256.0	254.3	245.4	265.9	259.7	245.0	243.0	240.0	243.6	264.6	238.0	266.0	272.8	269.8	247.5	257.4	259.3	250.5	250.5	241.7	245.3	-9999.0
144	Barents Sea	220.4	225.0	219.0	220.0	206.2	209.8	223.1	258.6	257.9	234.2	228.4	228.9	199.4	192.9	196.9	204.1	207.5	226.0	241.5	235.9	219.0	225.6	223.7	219.1	231.6	234.9	240.9	238.6	239.7	243.1	-9999.0
146	Kara Sea	228.2	230.2	230.0	232.4	232.3	240.6	245.2	238.0	232.0	236.5	231.2	218.5	214.7	218.3	220.3	216.7	221.4	221.8	224.9	227.8	223.7	222.6	221.3	221.4	229.0	242.2	234.9	231.0	231.0	236.5	-9999.0
148	Laptev Sea	180.8	179.0	177.7	179.8	191.7	206.3	210.0	205.2	186.2	182.2	192.1	184.7	193.9	202.8	215.7	203.6	199.3	194.5	189.7	188.0	198.4	196.1	196.5	197.5	205.3	203.6	220.8	241.3	233.7	228.8	-9999.0
150	East Siberian Sea	166.8	166.4	171.2	167.7	172.1	176.5	177.3	184.8	186.5	178.9	178.6	190.6	201.1	194.4	195.6	214.2	219.4	208.5	219.0	216.0	204.4	233.4	231.4	216.3	225.5	218.4	228.0	212.8	206.9	212.0	-9999.0
152	Gulf of Alaska	256.9	260.8	229.3	211.8	217.3	222.0	239.2	229.4	243.0	245.3	230.1	242.9	229.1	215.1	212.9	220.4	245.8	225.5	208.3	200.2	216.2	256.2	257.8	239.2	238.1	240.1	238.5	229.5	237.2	246.8	-9999.0
154	Southeast Bering Sea	228.4	246.3	234.2	189.5	153.1	149.2	172.8	192.7	263.0	213.1	239.3	236.4	238.7	224.8	215.7	239.7	216.0	214.8	208.4	210.0	201.5	221.6	264.4	275.7	245.1	266.3	243.0	245.0	281.8	306.0	-9999.0