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Introduction
Intensive rawinsonde observation was carried out at EGAT Tower site (99'25'47.5''E, 16'56'23.5''N after GPS measurement in Nov. 2000) by Tsukuba Univ. group, led by Dr. Sugita. This file archives their data. The original data source is Anonymous FTP Site
in Tsukuba Univ, Japan.
Metadata
Data Type |
Description | Intensive Sonde Observation at EGAT Tower |
Type | Boundary Layer Observation Data |
Period Type | - |
Holding | International Data Resource |
Process Level | Level 2 (Station Data) |
QC Level | QC 1? |
Access Limitation | For any research purpose |
Contents |
- Height(MSL) (m)
- P (hPa)
- T (degC)
- RH (%)
- Dewpoint (degC)
- Wind Dir (deg)
- Wind Speed (m/s)
- Ascent (m/s)
- Range
- Position
- Gill Sonic Anemometer Data (U',V',W', Sonic Temp, Absolute Temp. Raw Sensor Data(Temp., Humidity)
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Spatial Range |
Point/Points/Grid | Point |
Location/Extent | EGAT Tower Site |
Temporal Range |
Period | From Feb. 15, 1999
to Mar. 3, 1999 |
Interval | Sonde flights was 3 to 7 times per day. Data interval (during sonde flights) is 5 secs (10Hz for Gill Sonic). |
LT / UTC | ??? |
Time Difference (LT - UTC) | +0700 |
Boundary | - |
Contact Person (See the list of contact persons for detail) |
Prof. Sugita, M. |
XML Metadata File
Documents
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Data Format for Sonde Data (90*.dat)
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* daily log book :::::::: radiosonde observation :::::::
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* place: EGAt tower 16 deg 58.38 min N, 99deg 25.78 min E, 121 m
* folder name convention: YMMDD+a, b, c, d, e, f...
* (e.g. 90215b=2nd flight of 1999/2/15)
* Meteorological ground data:
* P from PAM or P@90m (of CR10)-10 hPa
* Ta (deg) &RH (%) Univ. Kyoto asman type psychrometer
* V (knots), WD (deg) from PAM or SAT @90 m
* V@2m=V@90mx(ln2/z0)/(ln(90/z0)=V@90mx0.22 (for z0=0.7m)
* V@2m (knots)=v@2m (m/s)* 2 ::: V (knots)=0.44*V@90m (m/s)
* PAM stopped operation from 2/17->
* GILL sonic raw data acquisition started on 2/19
* PAM CR10 data acquisition started on 2/20
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File Format of Gill Sonic Anemometer (PDF)
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Introduction of file-format of Gill Sonic Anemomter Data written by Prof. Sugita, Tsukuba Univ.
See also: EGAT Tower flux observation
Data Contents
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List of Flights and Data
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List of flights in 1999 and links to the raw data files.
It was converted from text document by Dr. Sugita.
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Whole Files Archive
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This dataset contains a lot of files. You can obtain all files in compressed form.
Other Information
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Remote Sensing Data and Images around EGAT Tower Site, Thailand
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A comprehensive WWW resource which Dr. Nishida of Tsukuba University, Japan, maintains.
[EGAT]
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Electricity Generating Authority of Thailand
- The Official WWW site of EGAT
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KoFlux Site Information of EGAT Tower
- From 2002, KoFlux (Korea Flux Network) members will maintain EGAT-Tower site. This is the site information document in their official Web Page.
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Photo of EGAT Tower
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From GAME-AAN project WWW resource.
[Overall]
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Data Policy of Whole GAME
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From GAIN-HUB WWW Site. Strategy, guideline for data exchange etc.
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Data Collection Plan
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From The Implementation Plan of GAME-Tropics
draft in 1996, by Japanese sub-comittee on GAME-T.
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GAME-T Observations at a glance
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A 32KB GIF image showing observation schedule by Prof. Oki
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GAME-T/Thailand/Chao Phraya Observing Stations
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A 24KB GIF image showing a map of observation stations made by Prof. Oki (See also new black-and-white version).
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Summary of GAME-T Data Plan
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From AMON(Asian Meteorology Online Newsletter), VOL. 1, NO. 4 (September 1997). Brief introduction of GAME-T data management strategy by Prof. Oki
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