CEOP CAMP Eastern Siberian Tundra Reference Site


IDENTIFICATION INFORMATION

Name CEOP CAMP Eastern Siberian Tundra Reference Site
Metadata Identifier CEOP_CAMP_Eastern_Siberian_Tundra20181214125355-DIAS20180903143952-en

CONTACT

CONTACT on DATASET

Name Hironori Yabuki
Organization Independent Administrative Institution Japan Agency for Marine-Earth Science and Technology, Institute of Observational Research for Global Change
Address 3173-25 Showa-machi , Yokohama-City, Kanagawa, 236-0001, Japan
TEL +81-45-778-5645
FAX +81-45-778-5706
E-mail yabuki@jamstec.go.jp
Name Tetsuo Ohata
Organization Independent Administrative Institution Japan Agency for Marine-Earth Science and Technology, Institute of Observational Research for Global Change
Address 2-15 Natsushima-cho, Yokosuka, Kanagawa, 237-0061, Japan
TEL +81-46-867-9250
FAX +81-46-867-9250
E-mail ohatat@jamstec.go.jp

CONTACT on PROJECT

Data Integration and Analysis System

Name DIAS Office
Organization Remote Sensing Technology Center of Japan
Address TOKYU REIT Toranomon Building 2F 3-17-1 Toranomon, Minato-ku, Tokyo, 105-0001, Japan
E-mail dias-office@diasjp.net

DOCUMENT AUTHOR

Name Hironori Yabuki
Organization Independent Administrative Institution Japan Agency for Marine-Earth Science and Technology, Institute of Observational Research for Global Change
E-mail yabuki@jamstec.go.jp
Name Tetsuo Ohata
Organization Independent Administrative Institution Japan Agency for Marine-Earth Science and Technology, Institute of Observational Research for Global Change
E-mail ohatat@jamstec.go.jp

DATASET CREATOR

Name Hironori Yabuki
Organization Independent Administrative Institution Japan Agency for Marine-Earth Science and Technology, Institute of Observational Research for Global Change
E-mail yabuki@jamstec.go.jp
Name Tetsuo Ohata
Organization Independent Administrative Institution Japan Agency for Marine-Earth Science and Technology, Institute of Observational Research for Global Change
E-mail ohatat@jamstec.go.jp

DATE OF THIS DOCUMENT

2018-12-14

DATE OF DATASET

  • creation : 2010-05-06

DATASET OVERVIEW

Abstract

Objectives

The goal of the GAME-Siberia project is to clarify the characteristics and processes of water accumulation and transfer and their relation with the energy cycle, in the atmosphere-land surface interface of cold environments from the seasonal to the inter-annual time scale. This study will contribute to one of the primary GAME objectives;

• To understand multi-scale interactions in the energy and hydrologic cycles in the Asian Monsoon Region

and one scientific objective;

•To assess the impact of monsoon variability on the regional hydrologic cycle.

The objectives of Taiga study subgroup include:

1.Develop seasonal and inter-annual variation of one-dimensional energy and water vapor fluxes over tundra.

2.Characterize the water balance components in these Taiga watersheds.

3.Determine the areal distribution of ground surface properties.

Topic Category(ISO19139)

  • climatologyMeteorologyAtmosphere

Temporal Extent

Begin Date 2002-10-01 00:00:00
End Date 2004-12-31 23:59:59
Temporal Characteristics Hourly

Geographic Bounding Box

North bound latitude 71.620000
West bound longitude 128.750000
Eastbound longitude 128.750000
South bound latitude 71.620000

Keywords

Keywords on Dataset

Keyword Type Keyword Keyword thesaurus Name
theme Climate, Water GEOSS

Keywords on Project

Data Integration and Analysis System
Keyword Type Keyword Keyword thesaurus Name
theme DIAS > Data Integration and Analysis System No_Dictionary

Distribution Information

name version specification
PRN no information CEOP Unified Format

DATA PROCESSING

Data Processing (1)

General Explanation of the data producer's knowledge about the lineage of a dataset

Temperature, relative humidity and radiation are instantaneous values. Precipitation is accumulated on the previous hour. Atmospheric pressure is averaged over the previous hour. Wind speed and direction are the resulting average speed and direction over the previous hour (calculated by the datalogger by means of data recorded every 5 seconds): this to minimize data unreliability due to sudden gusts. Both of them are calculated weighting the frequency distribution of both variables within each hour. Snow depth is averaged over the previous hour.

And the four parameters indicated below were computed by using “CEOP Derived Parameter Equations : http://www.joss.ucar.edu/ghp/ceopdm/refdata_report/eqns.html” . also put the data flag “I”,

Dew Point Temperature (10m) were computed by using (Bolton 1980):

es = 6.112 * exp((17.67 * T)/(T + 243.5));

e = es * (RH/100.0);

Td = log(e/6.112)*243.5/(17.67-log(e/6.112));

where:

T = temperature in deg C;

es = saturation vapor pressure in mb;

e = vapor pressure in mb;

RH = Relative Humidity in percent;

Td = dew point in deg C

Specific Humidity (10m) were computed by using (Bolton 1980):

e = 6.112*exp((17.67*Td)/(Td + 243.5));

q = (0.622 * e)/(p - (0.378 * e));

where:

e = vapor pressure in mb;

Td = dew point in deg C;

p = surface pressure in mb;

q = specific humidity in kg/kg.

U,V Components (10m) were computed by using (GEMPAK):

U = -sin(direction) * wind_speed;

V = -cos(direction) * wind_speed;

Outgoing Short wave radiation(1.5m) were computed by using (GEMPAK):

Up(Out)short radiation = down(in)short + down(in)long - up(out)long - NET_radiation;

DATA REMARKS

For all parameters, the data has been visually checked, looking for extremely and unusual low/high values and/or periods with constant values thorough the CAMP Quality Control Web Interface.

The quality control flags follow the CEOP data flag definition document.

"D" is put as a questionable or dubious flag for the Longwave downword Radiation, the Shortwave downward Radiation, and the Net Radiation data.

We assume that these Radiation data were caused by snow or frost coverage on the sensor in winter season.

UCAR/JOSS conducted two primary quality assurance/control procedures on the reference site data. First the data has been evaluated by a detailed QA algorithm that

Verifies the format is correct, examines any QC flags, and conducts basic checks on data

values. Second, JOSS conducts a manual inspection of time series plots of each parameter.

USE CONSTRAINTS

Data Policy for Project

Data Integration and Analysis System

The terms of data use of data providers take first priority over the DIAS data usage policy. In the event a data provider has not established terms of use, the following DIAS project data terms of use apply.

1. Users shall prioritize and abide by terms of use stipulated by a data provider in the event such exist

2. The use of DIAS data sets is limited to research and educational purposes [*1]

3. Users shall not modify the content of DIAS data sets

4. Users shall not provide the content of DIAS data sets to third parties

5. In the event of using DIAS data sets in an academic presentation, paper, article, or report, etc., users shall cite in parenthesis the text given as the data citation

6. In the event of using DIAS data sets in an academic presentation, paper, article, or report, etc., users shall submit a copy of the work (an offprint in the case of a paper, or a copy of the lecture summary in the case of an oral or poster presentation) to the DIAS office below

[*1] Data sets whose commercial usage are allowed under the data policy by data provider will be also allowed to be used commercially as DIAS data sets, after ongoing preparation works have been completed. Please contact the DIAS Office for more details.

[DIAS Office]

E-mail: dias-office@diasjp.net

Remote Sensing Technology Center of Japan

TOKYU REIT Toranomon Building 2F 3-17-1 Toranomon, Minato-ku, Tokyo, 105-0001

Disclaimer for Project

Data Integration and Analysis System

1. DIAS data provider is not liable for any losses or any damage when DIAS data sets are used.

2. DIAS data and related information are subject to change without any prior notice.

3. DIAS data sets provided are not supported for any additional processing or analysis.

ACKNOWLEDGEMENT

Project Acknowledgement

Data Integration and Analysis System

Whenever DIAS dataset is used for any academic presentations, and any publication of scientific results, the author(s) shall specify the following acknowledgement and if the data provider has their own acknowledgement quotation, the author(s) shall use both acknowledgements.

"The DIAS dataset is archived and provided under the framework of the Data Integration and Analysis System (DIAS) funded by Ministry of Education, Culture, Sports, Science and Technology (MEXT)."

REFERENCES

Ohata,T., Fukushima,Y. 1999. Progress of GAME-Siberia 1997-98. GAME Publication No.14 Activity Report of GAME-Siberia, 1998, p1-5.

Kodama,Y. 1999. The outline of the field observation in Tundra Region in 1998. GAME Publication No.14 Activity Report of GAME-Siberia, 1998, p7-12.

Ishii,Y., Kodama,Y., Sato,N., Nakamura,R., Nomura,M. 1999. Summertime Water Balance in a Siberian Tundra Basin. GAME Publication No.14 Activity Report of GAME-Siberia, 1998, p13-16.

Hinzman,L., Kodama,Y. 1999. Hydrologic Modeling Analyses in GAME/Siberia. GAME Publication No.14 Activity Report of GAME-Siberia, 1998, p17-24.

Nomura,M., Kodama,Y., Nakamura,R. 1999. Heat balance of snowpack in early snowmelt season in Siberia tundra. GAME Publication No.14 Activity Report of GAME-Siberia, 1998, p25-26.

Kodama,Y., Sato,N., Yabuki,H., Ishii,Y. 1999. Seasonal Change in the Heat Fluxes over Siberian Tundra. GAME Publication No.14 Activity Report of GAME-Siberia, 1998, p27-34.

Mizoguchi,M., Watanabe,K., Fukumura,K., Kiyosawa,H. 1999. Spatial Distribution of Active Layer on a Hillslope in Siberian Tundra. GAME Publication No.14 Activity Report of GAME-Siberia, 1998, p35-36.

Watanabe,K., Mizoguchi,M. 1999. Pit Observations of Active Layer in Tundra Wetland Near Tiksi, Siberia. GAME Publication No.14 Activity Report of GAME-Siberia, 1998, p37-42.

Sato,T., Hayasaka,Y., Kodama,Y. 1999. Perspective of spatial distribution patterns and frequency of cryospheric vascular plants of tundra in micro scales at Tiksi, northernmost Sakha (Yakutia). GAME Publication No.14 Activity Report of GAME-Siberia, 1998, p43-48.

Hayasaka,Y., Kanda,H., Sato,T. 1999. Distribution patterns of bryophytes in micro-scales of tundra in relation to water levels. GAME Publication No.14 Activity Report of GAME-Siberia, 1998, p49-52.

Kiyosawa,H., Mizoguchi,M. 1999. Soil Temperature Analysis of Active Layer in Siberian Tundra. GAME Publication No.14 Activity Report of GAME-Siberia, 1998, p53-54.

Original data was collected and is provided within the framework of the Institute of Observational Research for Global Chang (IORGC), Independent Administrative Institution Japan Agency for Marine-Earth Science and Technology (JAMSTEC), financially supported by the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT).


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