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 | Backscatter data taken by the ceilometer at Kototabang (GIF format)
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| Description: |
| The time-height plot of backscatter intensity in the troposphere (0-7 km) taken by the ceilometer at Kototabang, Indonesia (0.20S, 100.32E, 865m MSL). The black dots show primary cloud base. The right panel is a height profile of 1-day average backscatter intensity. File names are (year)(month)(day).gif. Local time (UT + 7h) is used for time data. |
| Acknowledgement: If you acquire ceilometer data, we ask that you acknowledge us in your use of the data. This may be done by including text such as ceilometer data provided by Research Institute for Sustainable Humanosphere of Kyoto University. We would also appreciate receiving a copy of the relevant publications. |
| ReleaseDate: 2022-04-02T00:00:00 |
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Contact
(PrincipalInvestigator):
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| Hiroyuki Hashiguchi, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, hasiguti(at)rish.kyoto-u.ac.jp |
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Contact
(GeneralContact):
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| EAR Management Group, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, ear(at)rish.kyoto-u.ac.jp |
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Contact
(MetadataContact):
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| RISH Metadata Management Group, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, iugonet(at)rish.kyoto-u.ac.jp |
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| AccessInformation: |
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URL: http://www.rish.kyoto-u.ac.jp/ear/ceilometer/index.html |
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Availability: Online |
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Access
Rights: Open |
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Format: GIF |
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| Measurement
Type: Profile |
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| Time
Span: |
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StartDate: 2002-04-06T11:00:00 |
| StopDate: -P6M |
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| Observed
Region: Earth.NearSurface |
| Observed
Region: Earth.NearSurface.Atmosphere |
| Observed
Region: Earth.NearSurface.Troposphere |
| Observed
Region: Earth.NearSurface.EquatorialRegion |
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| Keywords: EARTH SCIENCE Atmosphere Atmospheric Clouds Clouds Height |
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| Instrument: |
| Name: Ceilometer at the Kototabang observatory |
| Description: The ceilometer CT25K at Kototabang, Indonesia (0.20S, 100.32E, 865m MSL) has been operated since April 6, 2002, and measures cloud heights and vertical visibilities. This instrument was developed by Vaisala Cooperation. The CT25K ceilometer employs pulsed diode laser LIDAR technology (LIDAR = Light detection and ranging), where short, powerful laser pulses are sent out in a vertical or near-vertical direction. The reflection of light - backscatter - caused by haze, fog, mist, verge, precipitation and clouds is measured as the laser pulses traverse the sky. The resulting backscatter profile, i.e. signal strength versus height, is stored and processed and the cloud bases are detected. Knowing the speed of light, the time delay between the launch of the laser pulse and the detection of the backscatter signal indicates the cloud base height. The CT25K is able to detect three cloud layers simultaneously. Besides cloud layers it detects whether there is precipitation or other obstructions to vision. No adjustments in the field are needed. The embedded software includes several service and maintenance functions and gives continuous status information from internal monitoring. The software is designed to give the full backscatter profile. Details of this instrument can be found in the PDF document (http://www.rish.kyoto-u.ac.jp/ear/ceilometer/ct25k.pdf). |
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Contact
(PrincipalInvestigator):
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| Hiroyuki Hashiguchi, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, hasiguti(at)rish.kyoto-u.ac.jp |
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Contact
(GeneralContact):
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| EAR Management Group, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, ear(at)rish.kyoto-u.ac.jp |
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Contact
(MetadataContact):
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| RISH Metadata Management Group, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, iugonet(at)rish.kyoto-u.ac.jp |
| InstrumentType: Unspecified |
| InvestigationName: CPEA (Coupling Processes in the Equatorial Atmosphere) |
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| Observatory: |
| Name: Equatorial Atmosphere observatory at Kototabang |
| Description: The Equatorial Atmosphere observatory at Kototabang is located at the equator in West Sumatra, Indonesia (0.20S, 100.32E, 865m MSL). In this site, various kinds of instruments (for example, boundary layer radar (BLR), equatorial atmosphere radar (EAR) and meteor wind (MW) radar) have been installed, which measure the equatorial atmosphere including the troposphere, lower stratosphere, upper mesosphere, thermosphere and ionosphere. |
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Contact
(MetadataContact):
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| RISH Metadata Management Group, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, iugonet(at)rish.kyoto-u.ac.jp |
| Location: |
| ObservatoryRegion: Earth.Surface |
| CoordinateSystemName: WGS84 |
| Latitude: -0.204 |
| Longitude: 100.320 |
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Observed
Data:
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Original
Metadata Files:
ceilometer_ktb_gif.xml:
Backscatter data taken by the ceilometer at Kototabang (GIF format)
(Observatory)
KTB.xml:
Equatorial Atmosphere observatory at Kototabang
(Instrument)
Ceilometer.xml:
Ceilometer at the Kototabang observatory
(Person)
Hiroyuki.Hashiguchi.xml:
Hiroyuki Hashiguchi
(Person)
EAR.Management.Group.xml:
EAR Management Group
(Person)
RISH.Metadata.Management.Group.xml:
RISH Metadata Management Group
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