1949 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	180.3	179.2	178.3	180.1	180.5	180.2	182.1	183.4	184.5	185.0	184.4	185.1	184.6	184.0	183.8	184.9	185.2	186.4	187.9	192.7	196.0	195.7	193.2	190.8	194.0	198.0	203.0	208.5	212.6	215.0	-9999.0
34	Hudson Bay	207.6	214.5	220.8	219.9	212.5	208.1	207.9	209.7	215.5	221.2	227.1	225.8	214.0	200.0	198.5	202.4	195.5	202.5	221.0	229.0	222.2	214.0	206.2	200.1	216.3	225.0	226.0	241.0	258.3	268.6	-9999.0
36	Hudson Strait	207.0	201.0	203.3	207.6	203.7	175.5	174.2	173.8	166.6	161.7	165.3	173.2	172.6	176.2	161.8	159.9	147.2	154.7	173.9	190.7	194.0	170.4	160.6	150.9	152.6	170.9	172.3	173.9	176.5	176.8	-9999.0
98	Bering Strait	166.0	165.8	168.6	169.6	170.1	164.6	166.6	163.6	165.8	173.4	174.3	175.8	176.7	177.9	182.4	185.2	194.4	194.2	195.6	199.6	204.3	197.2	186.1	180.2	175.9	171.6	179.3	186.6	187.4	187.8	-9999.0
128	Arctic subocean	124.2	125.9	127.2	122.7	118.2	116.5	120.0	123.3	126.9	131.7	126.9	113.3	108.0	101.8	107.6	109.2	107.7	112.5	117.0	113.5	110.8	114.3	120.5	132.0	142.6	144.8	146.3	152.2	149.2	151.0	-9999.0
130	Chukchi Sea	136.2	135.6	140.8	143.3	150.2	144.9	141.9	154.6	143.7	149.8	150.2	148.0	152.7	155.4	160.2	168.6	174.3	176.9	179.3	184.1	176.0	184.5	183.1	169.6	162.2	151.2	149.7	153.4	151.6	163.2	-9999.0
132	Beaufort Sea	204.4	205.8	199.5	200.0	204.6	196.0	199.4	201.5	192.7	201.3	208.6	196.0	189.6	187.6	191.3	194.1	206.4	214.3	213.0	219.1	218.1	209.9	199.9	198.8	200.3	205.0	222.3	229.0	230.7	226.4	-9999.0
134	Arctic Archipelago	180.7	178.4	175.5	164.4	163.1	166.0	171.1	176.8	185.4	172.9	159.1	152.5	139.2	142.3	129.9	134.5	147.7	136.3	138.0	149.3	146.6	147.5	167.8	175.3	169.3	173.7	187.0	195.7	194.2	188.5	-9999.0
136	Foxe Basin	162.5	170.5	176.8	180.4	166.8	156.6	155.3	157.3	155.3	156.1	168.0	164.3	149.8	142.5	144.6	129.9	122.0	133.7	121.4	128.4	136.2	133.1	136.1	138.6	153.8	143.7	139.9	155.3	161.5	153.3	-9999.0
138	Baffin Bay	126.7	119.4	114.5	107.4	109.3	122.0	136.2	122.4	112.7	113.5	110.5	106.5	97.7	87.0	86.8	83.8	91.8	102.7	88.9	87.5	95.3	110.3	110.3	106.5	117.5	124.3	127.5	126.2	127.2	121.0	-9999.0
139	South Greenland	164.8	150.9	137.7	127.8	124.6	132.9	134.6	128.7	124.4	131.6	125.5	119.4	122.1	115.6	114.0	123.7	122.5	123.2	110.6	110.4	113.4	119.2	121.7	127.5	135.8	136.4	122.1	116.2	116.3	120.0	-9999.0
140	Greenland Sea	114.6	101.2	94.4	94.6	93.7	91.9	105.0	100.9	91.4	93.1	98.5	96.4	94.5	102.6	95.7	88.6	89.3	93.4	98.6	112.4	115.1	112.7	108.6	109.9	116.7	119.9	121.9	124.3	124.7	115.5	-9999.0
142	Norwegian Sea	188.1	201.6	224.2	243.9	226.5	212.1	199.4	197.7	195.7	206.2	212.9	211.0	214.8	229.8	243.0	258.2	249.3	244.7	239.3	217.5	218.8	222.3	221.4	225.1	241.3	245.3	227.4	233.4	231.4	216.8	-9999.0
144	Barents Sea	200.4	195.6	191.0	209.9	231.0	226.0	213.9	215.7	221.2	224.6	221.5	218.1	214.1	205.8	196.0	202.0	214.2	218.9	211.5	214.1	218.3	217.2	220.5	225.3	228.4	226.6	231.3	231.3	233.4	231.6	-9999.0
146	Kara Sea	186.0	184.6	186.8	192.2	192.8	199.7	205.6	207.8	205.6	197.0	200.4	213.5	220.1	222.0	219.8	220.4	219.6	218.1	216.2	218.5	224.2	226.9	227.1	223.7	221.2	225.6	233.7	240.5	244.6	249.7	-9999.0
148	Laptev Sea	165.3	164.9	161.0	162.2	163.1	159.1	157.7	169.4	182.7	183.8	164.1	157.3	166.2	179.7	188.8	181.9	170.7	168.2	169.7	175.4	184.5	186.8	179.3	174.9	180.7	184.2	187.4	192.7	197.8	202.2	-9999.0
150	East Siberian Sea	158.8	155.1	151.1	155.7	155.7	155.2	156.2	139.7	134.8	143.4	154.7	157.0	151.3	144.8	147.0	150.4	152.9	151.2	156.9	166.4	179.3	193.2	191.6	186.3	189.1	197.6	202.8	196.5	190.2	189.3	-9999.0
152	Gulf of Alaska	201.1	197.2	197.8	191.8	183.3	203.4	195.5	182.8	184.9	191.3	197.9	206.8	205.2	203.5	199.8	208.1	217.6	218.2	217.2	217.2	217.5	210.0	206.9	204.4	201.1	202.1	205.4	204.9	199.8	190.5	-9999.0
154	Southeast Bering Sea	169.1	165.5	157.1	157.0	162.6	164.3	157.2	163.9	180.9	185.9	197.1	208.7	207.5	201.3	204.5	209.3	219.8	223.0	224.0	217.6	212.0	195.6	204.9	204.0	193.3	188.1	178.2	170.0	179.8	196.8	-9999.0