1973 04 - daily  - mean of NCEP mean Daily Water Equiv. of Accum. Snow Depth at surface, kg/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	3537.5	3540.1	3540.0	3540.0	3540.1	3540.2	3539.4	3537.9	3537.8	3537.8	3537.9	3537.8	3537.9	3536.6	3535.6	3536.6	3536.7	3536.9	3536.6	3536.5	3535.7	3534.7	3534.8	3534.7	3534.5	3534.2	3534.2	3533.1	3531.5	3532.7	-9999.0
34	Hudson Bay	19.8	28.2	28.7	28.4	29.3	29.8	29.5	28.9	25.2	24.9	25.0	25.0	25.0	23.1	20.5	25.4	25.0	24.8	23.6	22.9	20.5	18.5	19.3	19.7	19.6	19.5	19.4	18.3	16.9	15.4	-9999.0
36	Hudson Strait	39.1	39.0	39.0	39.1	39.7	40.7	46.8	51.1	41.2	39.6	39.5	39.8	39.3	39.3	39.7	39.1	39.8	39.6	39.1	39.1	38.4	37.6	29.9	28.9	27.7	27.7	29.2	24.4	16.2	33.4	-9999.0
98	Bering Strait	30.3	30.6	31.2	31.0	30.7	30.4	29.5	28.5	29.6	30.4	30.3	29.9	29.4	26.6	25.2	30.1	30.3	30.3	30.3	30.3	30.1	28.8	29.7	29.8	29.9	29.7	29.9	29.2	28.9	28.6	-9999.0
128	Arctic subocean	20213.8	20213.6	20213.6	20213.5	20213.4	20213.5	20213.3	20213.5	20213.7	20213.6	20213.8	20213.8	20213.8	20213.7	20213.8	20213.6	20213.6	20213.6	20213.7	20213.7	20213.6	20213.6	20213.8	20213.9	20213.9	20214.2	20213.8	20213.5	20213.5	20214.0	-9999.0
130	Chukchi Sea	51.7	51.5	51.5	51.6	51.6	51.7	50.2	49.1	51.5	51.8	51.8	51.7	51.3	49.7	48.5	51.8	51.9	51.9	51.8	51.8	51.6	51.2	51.7	51.6	51.6	51.7	51.6	51.6	51.5	51.6	-9999.0
132	Beaufort Sea	26.5	30.5	29.9	30.5	31.1	30.8	30.5	28.8	28.2	28.2	28.5	29.5	29.8	29.1	27.6	30.3	30.4	30.3	29.9	30.0	26.2	22.0	21.2	20.9	20.7	20.2	19.8	17.3	15.5	17.3	-9999.0
134	Arctic Archipelago	43.7	43.4	43.5	43.6	43.5	43.5	43.6	43.7	43.6	43.6	43.7	43.9	43.7	43.8	44.0	43.7	43.7	43.7	43.7	43.7	43.9	44.2	44.0	43.8	43.8	43.7	43.6	43.0	42.4	43.3	-9999.0
136	Foxe Basin	55.8	49.6	49.3	49.7	49.9	49.4	49.8	50.7	50.3	49.8	49.8	49.4	49.7	50.4	51.4	49.7	49.5	49.8	50.1	49.7	50.0	51.2	49.6	49.5	49.2	49.1	49.5	51.2	52.1	49.8	-9999.0
138	Baffin Bay	26189.3	26189.0	26189.0	26189.2	26189.2	26189.4	26189.7	26191.1	26189.7	26190.0	26190.0	26190.0	26190.2	26190.2	26190.7	26190.4	26190.4	26190.6	26190.7	26190.8	26190.9	26191.3	26191.0	26191.1	26191.1	26191.2	26191.3	26191.0	26191.1	26191.6	-9999.0
139	South Greenland	34447.5	34447.3	34447.5	34447.5	34447.6	34447.6	34448.8	34448.7	34447.5	34447.7	34447.0	34447.9	34448.3	34448.2	34448.4	34448.4	34448.1	34448.5	34447.4	34447.4	34447.2	34447.7	34446.7	34445.7	34446.0	34445.7	34445.4	34444.6	34443.7	34444.2	-9999.0
140	Greenland Sea	43549.0	43549.2	43549.2	43549.1	43549.1	43549.1	43549.2	43549.4	43549.2	43549.2	43549.2	43549.2	43549.2	43549.0	43549.1	43549.2	43549.1	43549.2	43549.1	43549.1	43548.9	43549.0	43549.0	43549.0	43548.8	43549.0	43549.0	43548.2	43547.8	43549.0	-9999.0
142	Norwegian Sea	1.4	13.2	13.4	12.9	12.5	12.7	13.0	12.3	13.0	13.4	13.3	12.9	12.3	7.1	5.0	9.6	10.4	9.8	9.7	11.0	9.1	5.3	8.6	9.3	9.3	10.6	10.5	10.1	6.6	12.0	-9999.0
144	Barents Sea	21.2	30.1	29.0	28.5	29.2	29.3	19.7	11.8	23.3	24.8	24.2	21.4	22.1	16.2	12.3	18.7	18.7	18.0	16.9	17.4	17.4	16.5	16.5	16.4	16.5	15.7	14.9	13.5	10.6	18.3	-9999.0
146	Kara Sea	23.7	27.4	27.2	27.0	26.6	26.8	25.5	21.8	21.8	21.8	22.1	22.2	22.5	20.6	19.4	17.4	18.0	18.8	18.9	19.0	18.8	17.9	18.3	18.2	17.7	17.3	17.5	17.5	16.5	15.0	-9999.0
148	Laptev Sea	32.9	31.3	31.1	31.1	31.2	31.3	31.5	31.7	31.3	31.2	31.2	31.1	31.0	31.5	32.7	31.3	31.0	31.0	31.0	31.0	31.1	30.9	30.9	30.9	30.9	30.4	29.8	27.8	25.3	29.0	-9999.0
150	East Siberian Sea	37.8	37.5	37.5	37.6	37.7	37.7	38.0	38.4	37.8	37.7	37.6	37.6	37.6	37.5	37.4	37.3	37.6	38.3	37.8	37.6	37.1	37.3	37.1	37.2	37.3	37.3	37.3	35.5	33.3	37.0	-9999.0
152	Gulf of Alaska	16.7	18.1	17.9	18.2	17.8	17.7	17.2	17.8	17.6	18.5	18.5	17.2	17.6	14.7	12.6	18.3	18.2	18.5	18.4	18.7	17.3	15.3	17.4	17.4	17.5	16.6	17.7	15.6	13.0	15.2	-9999.0
154	Southeast Bering Sea	21.9	22.3	22.3	22.2	21.9	22.1	18.8	15.3	22.3	22.6	22.3	20.1	20.8	13.5	6.6	21.8	22.3	22.9	23.0	22.8	19.2	17.5	22.4	22.3	22.6	22.6	22.5	21.0	17.5	20.4	-9999.0