1952 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	202.9	199.7	201.3	201.6	203.2	207.5	205.2	204.7	206.5	206.8	205.3	206.1	210.0	216.2	216.1	220.8	227.9	225.4	228.5	227.0	228.6	235.9	235.6	235.7	235.6	236.1	236.0	235.7	236.6	231.1	-9999.0
34	Hudson Bay	244.4	237.7	236.6	233.5	232.5	249.8	256.4	239.5	217.0	209.5	228.9	237.9	227.5	248.8	256.3	248.6	272.4	275.8	285.1	269.6	261.6	253.5	237.3	247.9	255.3	267.3	278.3	282.0	290.9	269.1	-9999.0
36	Hudson Strait	156.6	158.5	168.1	191.9	193.2	163.1	192.9	257.5	257.9	217.4	198.9	221.3	210.3	207.7	215.7	213.9	205.2	214.3	238.1	247.4	226.4	235.8	257.0	225.2	229.8	225.5	207.2	212.5	220.2	208.7	-9999.0
98	Bering Strait	175.6	188.4	203.9	208.5	201.0	207.0	209.1	228.5	246.5	252.7	229.3	220.3	206.0	205.5	199.3	210.1	205.1	195.4	207.4	208.7	220.6	228.1	217.7	229.5	230.4	224.3	215.0	231.9	219.2	199.7	-9999.0
128	Arctic subocean	135.6	144.1	141.9	155.1	150.8	133.9	120.5	124.1	121.1	122.6	124.7	133.8	144.0	174.0	164.1	163.1	173.3	178.2	177.7	168.1	163.5	159.6	152.9	167.1	151.9	139.0	145.4	152.7	163.6	188.3	-9999.0
130	Chukchi Sea	161.2	170.0	179.6	203.8	212.8	234.6	234.8	242.9	251.8	223.6	181.3	199.8	182.1	170.2	145.1	153.3	158.1	172.9	176.4	168.4	173.5	184.2	185.3	184.2	192.1	197.7	185.5	198.1	205.7	213.9	-9999.0
132	Beaufort Sea	218.2	216.7	224.2	238.6	247.8	240.8	218.6	196.5	203.3	246.7	237.5	217.6	234.4	245.2	231.0	254.0	254.2	226.9	236.7	228.8	224.5	239.2	228.2	242.6	253.1	273.7	262.9	254.9	244.9	233.7	-9999.0
134	Arctic Archipelago	181.7	187.3	188.2	177.7	187.5	198.7	159.4	151.3	185.6	213.9	218.1	173.2	177.5	181.9	208.8	217.6	243.7	245.4	216.4	195.1	187.2	184.1	202.5	205.5	215.8	222.2	236.1	226.9	241.2	251.0	-9999.0
136	Foxe Basin	156.5	157.9	177.8	174.9	150.0	136.6	190.6	162.9	142.1	183.1	229.1	241.6	209.4	196.2	210.2	196.3	191.6	190.7	190.6	191.3	206.8	240.0	224.4	196.3	183.8	187.8	195.8	213.6	201.2	199.1	-9999.0
138	Baffin Bay	131.4	106.8	98.6	99.3	99.2	98.3	97.1	99.1	113.7	90.5	101.5	123.6	149.4	158.6	154.1	152.9	156.3	162.4	168.5	159.1	156.2	158.0	173.6	163.1	151.5	145.6	147.8	152.1	154.3	155.1	-9999.0
139	South Greenland	177.4	133.7	122.8	126.4	133.6	139.7	132.6	139.9	168.8	164.2	139.8	143.1	157.4	170.8	167.8	179.5	197.6	187.3	188.3	190.7	183.5	201.1	211.5	221.3	216.5	204.8	205.9	201.7	189.7	184.1	-9999.0
140	Greenland Sea	111.1	99.3	92.0	101.3	116.9	110.1	105.2	117.7	127.2	123.7	152.1	175.3	186.6	195.0	168.8	135.1	143.8	147.5	145.0	146.9	142.3	142.3	150.5	156.4	170.0	152.4	153.8	163.4	154.6	146.4	-9999.0
142	Norwegian Sea	226.9	221.7	238.9	247.6	264.2	257.0	268.4	268.0	264.2	279.5	301.1	282.0	269.9	273.4	266.3	257.9	275.8	276.6	270.4	274.0	269.6	283.1	280.5	277.5	272.4	267.3	281.3	292.8	292.8	285.4	-9999.0
144	Barents Sea	177.2	194.9	234.8	237.9	226.1	211.7	224.3	249.0	257.7	255.2	241.7	243.2	260.2	258.9	248.8	263.2	254.3	240.9	247.1	241.0	231.4	247.7	247.9	271.9	264.7	252.9	234.3	257.7	238.3	208.2	-9999.0
146	Kara Sea	207.1	201.7	197.2	196.6	201.9	209.8	208.0	207.6	207.6	208.2	214.7	220.4	223.1	234.0	231.6	234.0	239.6	240.5	248.6	249.2	250.8	254.5	255.2	249.8	247.1	255.8	257.3	251.9	255.5	251.5	-9999.0
148	Laptev Sea	228.7	233.0	224.8	213.6	205.1	203.5	196.4	201.1	200.2	191.7	181.3	176.5	181.0	174.2	189.7	202.8	208.3	209.8	197.6	209.6	226.5	241.7	246.0	234.6	226.3	208.5	214.0	219.4	228.8	239.2	-9999.0
150	East Siberian Sea	205.0	198.0	215.9	214.8	225.9	231.8	238.9	227.7	211.1	198.1	181.7	190.4	205.9	200.9	187.5	179.2	186.3	190.7	196.1	198.1	221.7	246.7	258.3	239.0	232.9	226.2	217.9	192.8	186.7	191.1	-9999.0
152	Gulf of Alaska	192.1	186.8	189.2	188.8	186.4	206.0	231.4	239.4	263.8	253.6	229.3	221.7	244.5	242.4	232.8	257.1	229.2	218.2	221.4	247.8	251.5	234.8	241.4	251.8	254.8	238.4	218.6	211.0	219.1	211.2	-9999.0
154	Southeast Bering Sea	159.9	165.9	167.7	177.7	198.0	262.5	261.0	258.8	270.9	226.7	202.5	246.5	246.4	223.1	221.2	218.2	226.8	207.5	218.0	231.8	229.2	241.8	206.2	205.7	247.7	233.6	211.8	185.3	182.3	202.5	-9999.0