55 Works

Seasonal progression of the deposition of black carbon by snowfall at Ny-Alesund, Spitsbergen.

Sinha P. R, Kondo Yutaka, Goto-Azuma Kumiko, Tsukagawa Y, Fukuda K, Koike Makoto, Ohata S, Moteki N, Mori T, N. Oshima & Forland E. J
Wet and dry deposition of black carbon (BC) aerosol in the Arctic lowers snow albedo, thus contributing to warming in the Arctic. However, the processes and impacts associated with BC deposition in the Arctic are poorly understood because of the scarcity and uncertainties of measurements of BC in snow with adequate spatiotemporal resolution. We sampled snowpack at two sites (11 m and 300 m above sea level) at Ny-Alesund, Spitsbergen, in April 2013. We also...

NIAES agro-meteorological data (simulations of past and future projections over Central Thailand)

Dr. Kazunori Minamikawa & Dr. Toshichika Iizumi
Simulated agro-meteorological data of past (1981-2005) and future (2006-2060) over Central Thailand. Stations: Chai Nat、Suphan Buri、Bang Na、Ratchaburi Temporal coverage: 1981-2005(past simulations), 2006-2060 (future projections) Variables: daily maximum and minimum of air temperature (degC), precipitation (cm/d), solar radiation (MJ/m^2/d) File format Line 1: Station name, year and atmospheric CO2 concentration (ppmv) Line 2 to the end of file: day-of-year, daily minimum of air temperature, daily maximum of air temperature, precipitation and solar radiation. Leap years are...

GDHY

Toshichika Iizumi
The Global Dataset of Historical Yield (GDHY_v1_2) offers annual time series data of 0.5-degree grid-cell yield estimates of major crops worldwide. The crops considered in this dataset are maize, rice, wheat and soybean. The unit of yield data is t/ha. The grd-cell yield data were estimated using the satellite-derived crop-specific vegetation index and FAO-reported country yield statistics. Maize and rice have the data for each of two growing seasons (major/secondary). "Winter" and "spring" are used...

Future scenarios data on crop yields

Toshichika Iizumi
The grid-cell yield data available in this dataset are estimated using the global gridded crop model CYGMA and the assumptions on future climate and socioeconomy. The Shared Socioeconomic Pathways (SSP) 1, 2 and 3 are used as the assumptions on socioeconomy. Four different Representative Concentration Pathways (RCP) are used to account for the CO2 fertilization effect on yields. Future climate conditions are based on the bias-corrected CMIP5 GCM outputs. The data for maize, rice, wheat...

high-resolution (10 km) Reanalysis downscaled data over Japan

Masao Kanamitsu, Hideki Kanamaru, Wataru Ohfuchi & Kei Yoshimura
A 10-km and hourly dynamically downscaling simulation dataset from NCEP/NCAR Reanalysis over Japan for 1948-2006. The data includes most of 3-dimensional atmospheric state (temperature, wind speed, omega, height, humidity), and various surface fields (precipitation, evaporation, PBL height, surface air condition, radiation, etc.). The data is particularly useful for high resolution analysis of meteorology, and application for other fields such as agriculture or hydrology.

VnGP - Vietnam Gridded Precipitation dataset (0.25°×0.25°)

REMOCLIC
This dataset was created based on the daily data of 481 rainfall stations over Vietnam using the SPHEREMAP method.

VnGP - Vietnam Gridded Precipitation dataset (0.10°×0.10°)

REMOCLIC
This dataset was created based on the daily data of 481 rainfall stations over Vietnam using the SPHEREMAP method.

GRENE-ei CAAM 0.05°×0.05° Grid Daily Precipitation in Thailand

Kooiti Masuda
This is a 0.05°(lat) x 0.05°(lon) gridded data set of spatially-interpolated daily precipitation made from station precipitation in Thailand. Most of the data are obtained from the Thai Meteorological Department (TMD) by Prof. Jun Matsumoto (Tokyo Metropolitan University/JAMSTEC). We have not taken account of topographical effects, nor systematic errors of raingauges. In our product, data are given on grid boxes over land whose altitude is below 500 m only. Furthermore, those grid boxes which are...

GRENE-ei CAAM 0.05°×0.05° Grid Daily Precipitation in Thailand (prototype)

Kooiti Masuda
This is a prototype of 0.05°(lat) x 0.05°(lon) gridded data set of spatially-interpolated daily precipitation made from station precipitation in Thailand. Most of the data are obtained from the Thai Meteorological Department (TMD) by Prof. Jun Matsumoto (Tokyo Metropolitan University/JAMSTEC). We have not taken account of topographical effects, nor systematic errors of raingauges. In our product, data are given on grid boxes over land whose altitude is below 500 m only. Furthermore, those grid boxes...

GPV Data Archive

Eiji Ikoma
Oki/Kanae Lab purchases rights to archive the GSM-GPV data and stores them in Kitsuregawa-Lab data servers from July 2002. The data are free for research purpose, but refer or acknowledge as followings: The GSM-GPV data are originally provided by JMA. To access them, the archiving system of Oki/Kanae-Lab and Kitsuregawa-Lab, IIS, Univ. of Tokyo is used. Data accessible at http://dias.tkl.iis.u-tokyo.ac.jp/gpv/

AGURAM Ground Information Database

Hiroyuki Miyazaki
This dataset includes ground information derived by visual interpretation of satellite imageries taken by Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). The dataset consists of geometries of boundaries between urban and non-urban. Although the ground information dataset is originally developed for the ASTER Global URban Area Map (AGURAM; see details at https://eco.geogrid.org/), it will be a source of training and validation for satellite remote sensing applications, such as land cover classification and urban area...

Surface elevations on Qaanaaq and Bowdoin Glaciers in northwestern Greenland as measured by a kinematic GPS survey from 2012-2016

Tsutaki Shun, Sugiyama Shin & Sakakibara Daiki
Kinematic GPS measurements provide in-situ data crucial for measuring the surface elevation change of glaciers. Owing to their accuracy, which is generally better than half meter, surface elevations derived from kinematic GPS surveys are useful and essential for generating precise digital elevation models (DEMs) and evaluating geometry changes of glaciers. We present a surface elevation data set derived from kinematic GPS measurements covering the lower 5 km of Qaanaaq and Bowdoin Glaciers in northwestern Greenland....

NIES wind-tunnel dataset

Yukio Yamao Isao Kanda
Impact on human health by automobile air pollutants in roadside areas was investigated in the SORA (Study On Respiratory disease and Automobile exhaust) project (H17-22fy) administered by the Japan Ministry of Environment. In this project, a model was developed for estimating air-pollutant exposure to roadside residents. To provide validation data for this model, diffusion experiments under various building configurations from regular arrays to real cities were conducted in the Atmospheric Diffusion Wind Tunnel at National...

Daily 8km Normalized Difference Vegetation Index (NDVI) from 1982 to 2000 over the Japan Islands(beta-version)

Rikie Suzuki & Toshichika Iizumi
This dataset contains the daily value of the Normalize Difference Vegetation Index (NDVI) from 1982 to 2000 over the terrestrial areas of the Japan Islands that was derived from Pathfinder AVHRR Land (PAL) dataset. The horizontal resolution is 8 x 8 km. To reduce the cloud contamination, the original daily NDVI was temporally smoothed by Temporal Window Operation (TWO) method.

Global map of interannual response of normalized difference vegetation index (NDVI) for air temperature, precipitation, and photosynthetically active radiation (PAR)

Rikie Suzuki
Precipitation, air temperature, and radiation are the most dominant meteorological factor for the vegetation distribution and its interannual change. For example, lack of precipitation precludes vegetation in desert in mid-latitude, while lack of temperature constrains the vegetation in high-latitude tundra zones. The cloud cover disturbs the potential photosynthetic activity of the vegetation by reducing the Photosynthetically Active Radiation (PAR; (0.4 - 0.7 μm)) from the sun. This vegetation-atmosphere relationship was examined by using satellite-derived Normalized...

MAHASRI Pathfinder Gridded Precipitation Data of the Asian Region

Kooiti Masuda
This is a gridded data set of precipitation made from station precipitation included in the GAME Phase 2 Collected Data, by first summing up for each month at each station and then interpolating spatially. We have not taken account of topographical effects, nor systematic errors of raingauges. In our product, data are given on grid boxes over land only. Furthermore, those grid boxes which are far from any observing stations to be void of data....

West Sumatra Radar-Raingauge Integrated Data Version 1.1

Hideyuki Kamimera
This is a gridded data set of precipitation over West Sumatra in Indonesia which is based on an integration technique of weather radar and ground-based raingauge data. We first derived an empirical relationship between radar and raingauge measurements. By using the relationship, we converted radar measurements into precipitation at each grid point. As pre-processing radar data, the effect of mountain shadow was taken account of. For evaluation of the effect, we developed a tool for...

The spational distribution of annual mean minimum temperature for 1986-2004 (sample version)

Hotaek Park
The spatial distribution of the data were first interpolated by near-distance interpolation method based on Baseline Meteorological Dataset of Siberia (BMDS, 77stations), and then averaged on the annual.

The spational distribution of annual mean maximum temperature for 1986-2004 (sample version)

Hotaek Park
The spatial distribution of the data were first interpolated by near-distance interpolation method based on Baseline Meteorological Dataset of Siberia (BMDS, 77stations), and then averaged on the annual.

The spational distribution of annual mean air temperature for 1986-2004 (sample version)

Hotaek Park
The spatial distribution of the data were first interpolated by near-distance interpolation method based on Baseline Meteorological Dataset of Siberia (BMDS, 77stations), and then accumulated on the annual.

The spational distribution of annual precipitation for 1986-2004 (sample version)

Hotaek Park
The spatial distribution of the data were first interpolated by near-distance interpolation method based on Baseline Meteorological Dataset of Siberia (BMDS, 77stations), and then accumulated on the annual.

The glacier area of distribution from the topographical map created based on the aerial photograph for 1945 - 47 (sample version)

Hironori Yabuki
This data set extracts glacier distribution of the Altai Mongolian area based on the topographical map(1/100,000) which the Soviet Union army created based on the aerial photograph in 1945 - 47. The extraction method performed on GIS glacier distribution indicated to the topographical map by manual work.

Ocean Renalysis

Sugiura, Nozomi, Dr.
The 4D-VAR assimilation system used here is the same as in Masuda et al. [2003] covering the global ocean. The OGCM is version 3 of the GFDL Modular Ocean Model (MOM; Pacanowski and Griffies, 1999), which is equipped with several sophisticated parameterization schemes, for example, nonlocal K Profile Parameterization (Large et al., 1994) for mixed layer physics, Gent and McWilliams's scheme (Gent and McWiiliams, 1990) for isopycnal mixing, and quicker advection scheme (Leonald, 1979). The...

AE Index

Nose Masahito, Sugiura Masahisa, Kamei Toyohisa & Iyemori Toshihiko
The AE index was proposed by Davis and Sugiura [1966] to measure a global electrojet activity in the auroral zone. It is derived from geomagnetic field variations in the H component measured at 12 stations along the auroral zone in the northern hemisphere.

Extreme temperature and precipitation indices

Toshichika Iizumi
The climate_indices dataset offers 15 temperaure and 12 precipitation extreme indices calculated using S14FD retrospective meteorological forcing dataset and CMIP5_CDFDM_S14FD bias-corrected CMIP5 GCM outputs from 1958 to 2100.

Publication Year

  • 2017
    33
  • 2016
    3
  • 2015
    15
  • 2014
    2
  • 2012
    1
  • 2005
    1

Data Centers

  • Japan Link Center
    55