1952 04 - 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	173.2	171.1	170.9	170.8	171.7	174.9	174.0	172.5	174.3	175.1	174.3	176.1	180.3	186.4	188.6	192.1	197.6	198.2	200.7	199.8	200.8	205.6	206.0	206.7	207.4	209.1	207.2	206.6	207.8	204.2	-9999.0
34	Hudson Bay	207.8	203.7	202.9	204.4	205.7	217.8	225.6	207.7	188.1	188.4	200.7	210.6	210.5	224.7	232.5	230.8	240.5	248.8	255.5	245.7	234.5	228.3	218.1	230.7	237.3	248.9	256.0	262.0	268.5	254.8	-9999.0
36	Hudson Strait	154.1	156.9	163.1	173.5	176.9	155.7	166.7	206.5	217.4	186.2	168.6	177.5	184.4	188.0	190.3	185.4	185.6	194.6	206.8	208.5	202.1	205.5	212.6	197.7	203.2	197.9	195.1	197.9	200.4	191.1	-9999.0
98	Bering Strait	158.6	166.7	171.7	174.6	172.9	176.8	184.7	195.8	204.2	201.6	188.3	179.6	175.8	180.4	173.1	178.0	175.9	173.7	180.6	185.3	190.7	191.7	188.9	195.1	197.6	196.0	188.5	191.0	186.7	179.6	-9999.0
128	Arctic subocean	111.8	114.5	115.6	123.4	123.2	112.5	106.0	105.1	106.6	110.0	107.9	116.0	128.7	143.3	142.3	142.6	154.8	161.3	158.4	146.5	144.2	142.5	138.4	145.1	142.1	136.5	139.6	143.6	156.0	172.9	-9999.0
130	Chukchi Sea	154.1	160.0	160.9	169.8	180.4	191.4	199.6	203.1	204.4	185.7	159.6	163.0	159.4	157.4	135.7	138.3	145.8	154.5	161.2	159.5	161.4	167.4	169.1	168.9	174.7	176.4	170.8	174.0	178.6	183.3	-9999.0
132	Beaufort Sea	181.5	184.6	188.5	196.5	204.0	198.9	179.6	173.0	187.9	208.8	200.8	189.7	200.6	212.0	205.7	217.7	220.5	205.6	206.4	198.7	201.9	209.6	207.7	217.3	230.6	242.3	226.1	219.0	212.7	209.6	-9999.0
134	Arctic Archipelago	153.2	157.8	159.3	156.6	159.6	164.5	143.7	131.6	148.3	174.6	176.6	148.9	149.2	153.9	174.4	188.9	209.6	204.0	185.2	173.2	168.1	170.3	184.3	191.5	199.7	209.2	213.8	209.0	214.0	216.2	-9999.0
136	Foxe Basin	139.0	144.9	150.8	145.8	127.4	119.4	148.0	142.5	126.1	141.8	172.7	192.5	178.3	166.4	177.2	179.2	180.2	180.7	180.8	182.3	189.4	195.9	192.3	184.8	179.1	184.7	191.1	195.6	192.8	189.3	-9999.0
138	Baffin Bay	111.0	93.8	88.4	90.7	86.8	86.2	85.2	86.3	98.1	82.6	86.0	104.9	129.0	137.8	138.4	141.5	151.0	154.6	156.0	151.2	147.5	144.7	149.6	148.1	143.9	142.7	140.9	138.3	144.8	151.3	-9999.0
139	South Greenland	150.3	118.2	107.9	110.3	112.7	117.1	114.4	121.7	138.6	137.3	115.8	126.3	142.8	152.6	154.5	162.8	173.9	169.6	169.9	170.4	167.5	179.6	186.8	192.2	188.9	182.6	178.4	173.2	170.5	169.6	-9999.0
140	Greenland Sea	99.1	84.7	80.2	86.6	98.0	96.4	92.1	99.7	111.5	108.8	117.3	127.7	138.7	146.3	142.7	129.6	138.1	142.5	141.5	139.2	135.9	135.8	137.6	137.9	143.2	136.3	133.9	140.9	140.0	138.8	-9999.0
142	Norwegian Sea	197.9	196.4	204.2	212.6	225.1	225.4	230.1	228.0	227.1	239.2	255.7	249.7	234.9	233.5	228.4	215.8	226.5	231.1	230.5	233.1	232.5	240.1	238.8	238.1	235.3	235.2	241.8	251.3	258.2	255.0	-9999.0
144	Barents Sea	162.4	164.7	185.6	191.7	190.1	190.1	198.0	210.2	217.1	216.5	212.6	214.7	221.4	218.9	215.5	217.8	211.5	208.3	207.0	205.5	206.1	214.5	216.6	226.4	230.1	224.4	210.9	225.0	220.0	193.4	-9999.0
146	Kara Sea	179.9	172.9	169.7	165.7	170.1	177.9	175.9	173.1	174.6	176.3	182.7	189.6	194.1	199.0	199.4	201.7	206.3	208.7	215.5	215.7	217.2	223.2	223.5	215.8	213.2	218.0	218.6	214.6	214.7	211.9	-9999.0
148	Laptev Sea	181.3	190.1	182.5	174.7	162.7	157.8	154.4	158.6	161.8	159.3	153.7	149.8	147.7	150.8	161.3	168.2	175.0	176.4	174.5	182.1	194.2	204.2	207.8	202.9	195.4	188.8	189.3	192.0	198.2	200.6	-9999.0
150	East Siberian Sea	172.3	175.2	184.6	188.8	193.0	195.0	200.7	191.5	175.3	160.3	149.8	148.6	155.4	160.8	157.9	155.7	162.2	166.4	171.7	173.7	181.9	195.5	201.5	194.8	189.2	180.7	176.9	162.5	162.8	168.4	-9999.0
152	Gulf of Alaska	172.8	172.2	173.2	173.2	173.6	183.3	200.6	207.7	218.4	211.9	200.7	197.7	207.7	211.3	204.3	216.8	202.4	196.8	197.4	211.7	211.9	204.3	204.6	213.4	213.4	208.6	197.2	195.6	196.9	194.7	-9999.0
154	Southeast Bering Sea	155.9	162.1	163.8	166.3	180.0	212.1	218.5	220.4	224.0	206.5	191.7	199.5	205.7	201.8	202.3	196.9	189.3	183.4	193.8	206.1	199.6	199.5	187.6	191.6	208.4	200.5	188.4	177.5	175.3	190.6	-9999.0