1987 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	198.4	200.1	200.2	200.8	197.1	197.2	200.8	202.0	203.7	203.6	207.3	207.6	210.2	216.6	216.4	218.4	218.4	216.8	219.3	217.9	217.8	214.5	221.0	220.8	222.2	221.0	222.4	226.0	227.3	227.5	-9999.0
34	Hudson Bay	206.5	204.2	224.1	222.0	236.1	241.4	245.0	242.4	253.2	235.2	233.8	237.3	235.3	248.5	260.4	281.5	283.3	274.6	284.6	277.1	258.2	257.1	245.2	236.8	246.0	253.9	253.8	273.1	260.7	263.1	-9999.0
36	Hudson Strait	262.3	226.7	214.2	201.4	223.1	221.3	211.0	230.2	220.1	180.8	166.5	167.8	224.2	238.2	173.4	251.4	267.9	271.0	248.9	235.2	266.0	205.6	251.5	227.6	190.0	180.3	198.3	221.9	249.1	267.2	-9999.0
98	Bering Strait	216.7	228.3	215.1	207.1	196.0	194.4	201.7	196.0	189.9	206.5	194.7	195.3	196.1	204.8	221.7	206.7	203.0	193.6	201.7	211.8	212.1	205.2	212.3	217.6	215.6	220.1	228.5	229.1	239.2	232.3	-9999.0
128	Arctic subocean	114.4	116.3	120.1	136.1	150.6	148.7	143.8	132.0	135.0	123.1	139.4	142.3	131.2	172.6	149.8	146.1	143.2	140.9	144.4	154.7	175.9	165.4	158.0	151.0	180.7	144.0	149.2	157.0	167.2	163.5	-9999.0
130	Chukchi Sea	219.6	201.2	189.1	146.0	139.6	171.9	182.9	178.1	174.1	176.3	180.7	171.6	195.0	185.0	203.4	188.9	181.5	168.6	182.8	191.1	191.8	181.4	181.0	210.2	197.3	186.9	225.7	231.3	222.6	221.9	-9999.0
132	Beaufort Sea	209.2	229.5	211.1	219.8	214.0	235.1	237.5	234.7	216.6	235.9	237.4	223.6	220.9	245.5	254.7	246.4	230.7	220.3	220.1	224.2	239.0	224.7	218.0	221.6	229.4	229.5	254.6	242.6	255.0	262.5	-9999.0
134	Arctic Archipelago	177.1	173.6	164.5	161.4	167.4	191.0	160.5	156.4	163.3	169.8	177.7	172.9	161.0	173.1	198.4	217.4	225.7	222.4	206.9	203.5	197.2	186.9	179.2	171.9	192.9	183.0	189.9	204.7	190.5	197.5	-9999.0
136	Foxe Basin	177.5	200.9	184.1	191.2	198.4	160.7	207.9	174.3	150.4	155.5	161.7	174.0	193.7	187.1	152.6	190.1	209.3	187.6	178.2	215.8	198.5	174.2	184.7	182.5	171.2	207.3	181.8	150.8	176.5	196.1	-9999.0
138	Baffin Bay	108.6	126.6	159.0	190.8	165.4	130.3	133.2	131.2	117.8	127.9	130.9	127.7	132.3	137.2	129.2	123.5	124.8	126.2	130.8	132.1	136.5	123.3	138.2	141.3	133.2	146.5	137.8	123.7	121.4	126.3	-9999.0
139	South Greenland	143.3	180.8	228.0	235.9	189.6	169.4	172.6	164.5	165.7	159.8	142.5	150.9	162.8	150.4	158.7	150.6	156.2	170.3	177.1	175.4	157.0	167.1	203.8	194.9	169.3	161.2	153.1	147.0	146.8	150.8	-9999.0
140	Greenland Sea	115.5	113.2	133.7	167.0	158.4	139.8	141.9	132.1	126.8	147.0	152.1	131.3	173.4	179.4	162.7	175.4	129.2	122.4	155.4	195.5	199.4	187.8	170.7	201.8	207.0	155.9	146.8	155.1	154.1	142.9	-9999.0
142	Norwegian Sea	266.9	262.0	252.9	239.9	239.1	244.8	246.3	213.4	216.7	234.2	251.8	258.8	255.3	266.6	275.7	254.3	235.8	223.4	237.7	238.3	245.8	278.7	288.1	283.5	246.4	262.9	298.3	271.8	271.9	284.4	-9999.0
144	Barents Sea	215.2	218.2	203.3	215.8	230.9	209.0	215.7	226.0	206.0	193.5	207.4	228.7	232.9	240.3	224.7	244.2	241.2	239.7	240.6	235.0	232.5	233.7	242.9	238.8	229.1	222.7	225.5	244.7	266.4	255.4	-9999.0
146	Kara Sea	218.2	207.0	196.8	191.3	184.3	195.6	204.3	213.3	228.2	228.2	235.6	234.8	232.7	226.0	223.1	220.2	225.2	231.4	235.7	236.0	241.0	239.5	243.5	248.4	248.6	245.1	240.3	234.9	235.7	239.1	-9999.0
148	Laptev Sea	187.0	193.2	186.7	189.5	192.9	183.7	188.7	190.3	185.7	186.4	198.1	203.9	210.5	221.1	216.3	203.3	204.1	200.6	193.7	180.3	177.1	180.9	193.3	197.1	213.6	218.3	219.1	230.1	222.7	210.9	-9999.0
150	East Siberian Sea	181.0	180.1	201.4	191.0	170.2	152.3	152.2	155.8	160.0	160.6	170.6	163.7	158.9	167.1	163.6	171.2	177.0	173.4	178.2	173.3	182.8	184.3	231.6	215.8	188.2	189.3	189.7	201.8	205.3	206.5	-9999.0
152	Gulf of Alaska	229.3	232.8	257.5	256.6	227.6	202.1	212.2	211.1	222.2	244.2	222.6	219.3	232.4	252.2	238.0	231.8	219.4	211.3	217.5	232.1	236.4	242.2	244.1	238.0	241.8	242.4	223.2	219.7	271.5	257.0	-9999.0
154	Southeast Bering Sea	232.2	250.9	252.7	258.7	245.6	225.0	212.0	199.0	200.9	199.0	182.7	176.8	189.0	235.5	222.1	209.4	200.0	215.5	215.6	212.3	229.0	230.8	233.0	218.6	246.4	235.4	220.9	223.4	241.8	256.5	-9999.0