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  • Station or cluster: CryoNet Station
  • Type: Reference
  • Attribute(s):
  • WMO ID (if any):
  • Shape: point
  • Latitude, longitude: 37.425985, 138.886682
  • Altitude and/or range (m): 97
  • Landscape: Other
  • Year established: 1964
  • Year-round? Yes
  • Operations contact: Satoru Yamaguchi
  • Science contact: Satoru Yamaguchi
  • Data contact: Satoru Yamaguchi
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Snow and Ice Research Center, NIED
Reference CryoNet Station Information

Our station is located at the hill with 97 m a.s.l. at the end of the Echigo plains near the seaside of Japan Sea. The averaged maximum snow depth is approximately 130 cm while a mean daily air temperature during the winter (Dec-Feb) higher than 2 °C. The station has been operated by Snow and Ice Research Center, National Research Institute for Earth Science and Disaster Resilience, Japan, since 1965. One of the aims of our Research Center is mitigation of snow disaster, therefore we have measured meteorological and snow data for basic data since the establishment of our Research Center. In addition to these data, we also have measured detail falling snow crystal types, density and so on. In the station, dual Doppler radar has been operated to measure snow cloud condition.

Measurement Methods Used

Data Information


Yamaguchi, S., A. Sato and M. Lehning (2004): Application of the numerical snowpack model (SNOWPACK) to the wet-snow region in Japan. Annals of Glaciology, 38, 266-272. doi:10.3189/172756404781815239

Yamaguchi, S., O. Abe, S. Nakai, A. Sato (2011): Recent fluctuations of meteorological and snow conditions in Japanese mountains. Annals of Glaciology, 52. 209-215, doi:10.3189/172756411797252266

Reports of snow pit observation at Nagaoka for each winter are listed at the following web site (Only Japanese)


The measurements made at Snow and Ice Research Center, NIED are listed in the following tables. (Note: If End Year is blank, measurements are ongoing.)

Cryosphere Measurements

Element Variable Start Year End Year Frequency
SnowSnow on the ground (WMO code 0957)1965Continuous
SnowSnow water equivalent1989Continuous
SnowSnowpack profile1965Continuous
SnowSnowfall depth1965Continuous
SnowWater equivalent of snowfall1965Continuous
SnowDrifting/blowingNot specified
SnowTemperatureNot specified
SnowSurface temperature2005Continuous
SnowSnow surface areaNot specified

Atmosphere Measurements

Element Variable Start Year End Year Frequency
MetAir temperature1965Continuous
MetHumidity/vapour pressure1965Continuous
MetWind speed and direction1965Continuous
MetAir pressure1965Continuous
MetTotal precipitation1965Continuous
MetTrace gasesNot specified
MetSensible and latent heatNot specified
RadiationDownwelling shortwave1997Continuous
RadiationUpwelling shortwave1997Continuous
RadiationDownwelling longwave2005Continuous
RadiationUpwelling longwave2005
RadiationSunshine duration1997Continuous

Measurement Notes and Other Measurements

Category Description or List
HydrologyDischarge from the snowcover using lysimater

Last updated: 6 February 2018