1949 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	211.5	209.4	206.3	211.7	215.2	213.1	213.1	214.1	213.4	214.4	213.7	215.8	212.9	212.2	213.7	214.0	213.0	213.5	215.7	221.7	227.6	227.1	221.9	215.5	219.7	225.8	231.1	238.2	242.3	244.1	-9999.0
34	Hudson Bay	234.0	245.1	245.9	249.6	241.9	244.5	238.4	236.9	248.8	249.8	258.0	262.3	252.5	231.8	224.1	239.2	220.8	227.5	251.1	256.1	255.9	252.7	236.5	225.9	250.3	255.7	249.1	271.0	296.2	300.7	-9999.0
36	Hudson Strait	246.7	236.0	230.6	241.1	241.1	192.8	194.0	202.4	185.1	172.8	181.9	190.2	182.2	200.0	172.5	180.2	160.2	167.3	195.1	219.6	234.6	195.3	188.9	170.2	171.4	203.7	189.4	192.6	193.5	186.2	-9999.0
98	Bering Strait	196.3	195.6	192.0	194.4	205.5	190.1	191.1	189.9	192.0	197.7	204.8	204.8	196.1	196.0	205.4	205.9	225.3	225.0	225.4	225.7	241.3	233.1	211.5	202.1	198.1	188.9	206.5	218.1	222.7	226.2	-9999.0
128	Arctic subocean	149.7	150.5	154.3	144.3	134.8	130.7	137.8	143.6	148.1	152.8	152.0	137.2	128.5	117.3	133.7	138.1	124.2	130.6	137.0	129.0	118.9	123.4	134.5	150.4	172.2	172.0	171.5	180.3	181.8	173.6	-9999.0
130	Chukchi Sea	163.2	157.0	153.5	157.2	184.3	174.4	160.4	185.9	156.9	164.4	167.9	156.3	160.1	161.4	164.3	176.2	188.9	198.9	210.4	210.5	198.1	215.8	204.3	178.4	177.8	162.9	159.6	175.8	168.0	185.9	-9999.0
132	Beaufort Sea	241.2	242.1	224.1	225.5	247.5	228.0	226.2	238.2	215.3	229.2	253.1	228.1	219.5	206.0	223.8	212.9	229.1	240.3	235.2	252.5	262.9	249.5	230.9	231.5	233.2	233.4	258.2	260.9	263.1	264.9	-9999.0
134	Arctic Archipelago	217.9	209.6	207.8	187.4	186.7	200.3	204.5	207.6	226.0	199.2	175.9	180.7	158.1	164.1	145.9	157.1	171.0	148.5	152.4	169.7	162.6	161.1	196.7	203.2	189.7	194.4	206.3	218.8	213.4	202.2	-9999.0
136	Foxe Basin	182.5	210.9	224.2	231.5	207.1	192.8	183.8	186.2	167.7	166.3	199.4	190.9	171.0	171.7	183.2	162.4	151.6	165.1	137.6	149.8	172.9	169.9	158.6	151.8	183.5	171.9	145.0	163.3	175.5	174.7	-9999.0
138	Baffin Bay	144.3	135.8	128.3	122.2	129.3	142.5	168.1	138.1	119.7	119.7	122.5	127.0	113.5	101.6	106.8	95.6	106.9	119.1	96.6	96.4	100.9	115.0	116.2	111.6	128.4	135.2	139.8	137.2	142.6	131.2	-9999.0
139	South Greenland	184.7	161.8	150.8	145.2	139.0	152.8	155.0	148.6	136.5	145.2	138.6	128.4	133.8	130.3	130.6	144.0	138.7	141.1	123.7	127.5	129.7	133.8	138.1	141.1	148.1	154.6	138.0	129.0	126.6	132.0	-9999.0
140	Greenland Sea	128.1	111.5	101.6	108.4	108.9	100.8	113.9	109.4	97.9	98.5	105.5	103.4	103.7	117.5	111.1	103.5	96.6	98.7	112.8	136.6	143.5	138.6	128.5	122.2	129.2	139.3	141.0	147.8	160.3	135.1	-9999.0
142	Norwegian Sea	210.9	236.7	271.9	306.8	281.8	247.6	218.1	221.7	221.1	241.6	245.1	235.2	244.9	272.0	283.3	310.1	284.1	277.8	281.9	256.2	249.6	270.5	258.2	257.6	289.1	299.3	262.2	275.6	287.1	250.1	-9999.0
144	Barents Sea	242.5	235.5	220.5	264.3	283.2	268.1	253.8	259.7	260.2	268.4	272.1	267.6	251.0	239.6	211.3	218.1	241.8	251.2	236.3	239.3	242.8	238.1	242.3	259.0	255.1	249.2	263.5	269.1	268.8	261.7	-9999.0
146	Kara Sea	220.5	214.9	218.6	225.9	227.9	233.0	237.0	234.6	232.1	223.2	224.2	243.5	244.5	253.4	253.8	250.0	251.4	249.3	252.2	253.4	256.6	253.5	253.1	244.6	245.2	255.5	263.1	272.1	275.5	283.5	-9999.0
148	Laptev Sea	194.6	201.6	198.5	200.0	206.6	200.5	197.4	212.6	226.2	237.0	203.1	189.6	203.3	217.1	238.3	227.1	205.6	200.1	197.5	208.7	226.5	233.0	218.7	206.3	210.2	217.9	219.4	225.8	227.0	230.4	-9999.0
150	East Siberian Sea	193.1	177.1	171.2	193.3	195.8	190.6	195.5	179.3	169.7	175.5	180.8	197.2	196.3	181.5	178.5	184.0	188.1	181.4	188.8	193.0	205.1	238.7	241.7	222.3	215.2	234.5	249.4	235.9	219.8	219.0	-9999.0
152	Gulf of Alaska	237.9	237.0	238.4	224.6	211.5	243.5	235.1	206.9	205.0	212.5	229.1	248.4	239.0	234.8	225.2	240.9	254.4	251.0	247.8	245.3	241.2	234.8	229.5	231.4	229.0	230.9	246.5	242.3	232.8	214.5	-9999.0
154	Southeast Bering Sea	188.7	194.9	178.2	180.0	180.3	176.9	172.1	180.9	194.6	203.7	240.5	248.8	232.1	213.4	222.2	231.0	250.9	259.2	263.8	242.9	221.5	203.6	217.9	219.7	204.7	201.6	199.9	184.9	198.7	227.7	-9999.0