Cloud Attenuation for Satellite Applications Over Equatorial Climate

Mandeep, J. S.; Hassan, Syed Idris Syed

doi:10.1109/lawp.2008.919324

Cited by 23 publications

(10 citation statements)

References 9 publications

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“…The average annual rainfall of Penang is 2670 mm and relative humidity of 0%-50%. The climate system of Penang is largely influenced by the Northeast monsoon season, Southwest monsoon season, surrounding sea and wind systems (Hasan et al 2012;Mandeep et al 2008;Tan et al 2019).…”

Section: Study Areamentioning

confidence: 99%

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Urban Expansion Analysis using Landsat Images in Penang, Malaysia

Tew¹,

Tan²,

Samat³

et al. 2019

JSM

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Urban expansion mapping is important in urban planning, land use and water resources management. The purpose of this study is to evaluate the spatio-temporal trends of urban expansion in Penang using three Landsat satellite images taken in 2004, 2011 Likelihood was used to classify the land uses into urban, agricultural, water, and forest. Comparison of the classified images with time-series Google Earth images and field data collection resulting an accuracy up to 90%. The results showed that urban have been expanded around 5% from 2004 to 2018. Major urban development is mainly found in the eastern part of Penang island. Meanwhile, major development in the Penang mainland can be found in the middle and western regions. Due to the limited development land on the Penang Island, a rapid urban expansion can be found in the south-western part of the Penang mainland that near to the second bridge. In order to maintain the city and community sustainability in Penang, government needs to plan on balanced socioeconomic growth for the near future.

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Section: Study Areamentioning

confidence: 99%

“…Malaysia is a developing country with rapid urbanization. Malaysia is situated in tropical region, therefore, the sky is always covered with clouds (Mandeep 2008). As cloud cover is one of the main problems in LULC classification, thus, only few studies on urban expansion were reported in Malaysia.…”

Section: Introductionmentioning

confidence: 99%

Urban Expansion Analysis using Landsat Images in Penang, Malaysia

Tew¹,

Tan²,

Samat³

et al. 2019

JSM

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“…The common observation was made from the above experimentation was that for the liquid water content of 1 g/m3 for 10 GHz the specific attenuation was observed about 0.88 dB/km and for 7.5 GHz is about 5.55 dB/km. In the region of Malaysia research is carried out in order to study the effect of clouds on satellite communication [16]. They have used the beacon of SUPERBIRD-C satellite.…”

Section: Literature Reviewmentioning

confidence: 99%

A Novel Method for Prediction of Attenuation of Millimeter Waves by Fog and Smoke

Singh¹,

Kumar²,

Bonev³

et al. 2019

IJRTE

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Terrestrial radio wave link faces various challenges like attenuation caused by gases, water vapor and other weather phenomenon like rain, storms, snow, fog, cloud etc. These challenges are responsible for absorption and diffusion of energy. Another kind of obstacles observed by the radio waves on terrestrial path is vegetation, lamppost, grills and other urban constructions. Different phenomenon is studied under these conditions like reflection, diffraction, refraction, scattering, depolarization etc. In case of millimeter waves various propagation studies has been performed under different scenarios. More propagation studies are needed to be done especially for fog. In this paper radio wave propagation studies are performed for fog using proposed fog model and results are compared with the other model proposed in the Literature. Another propagation study is performed for smoke which is unique of its kind. This study indicates that even smoke can causes attenuation for millimeter wave frequencies.

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“…The Salonen and Uppala model [4] is reported to be a good model for predicting cloud attenuation using radio-sounding profiles [3]. One of the essential factors is the detection of clouds at each pressure level, where a critical humidity function as shown below is referred,…”

Section: A Cloud Attenuation Modelmentioning

confidence: 99%

“…Previously, comparisons of the measured cloud attenuation with different prediction models have been performed over the equatorial region [3]. Their results indicate that Salonen and Uppala model [4] which is based on the radio-sounding profiles, is the most suitable prediction model.…”

mentioning

confidence: 99%

Comparison of radio-sounding profiles for cloud attenuation analysis in the tropical region

Yuan

Lee

Meng

2014

2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)

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In this paper, comparisons of radio-sounding profiles with different resolutions are performed for prediction of cloud attenuation in the tropical region. The Salonen and Uppala model which was reported to have an excellent prediction capability for cloud attenuation is used. One-month data is processed for calculating the height of cloud base, the 0ºC isothermal level, and the cloud attenuation. The results show that the free radiosonde data with low resolution is sufficient for the cloud attenuation prediction.

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Cloud Attenuation for Satellite Applications Over Equatorial Climate

Cited by 23 publications

References 9 publications

Urban Expansion Analysis using Landsat Images in Penang, Malaysia

Urban Expansion Analysis using Landsat Images in Penang, Malaysia

A Novel Method for Prediction of Attenuation of Millimeter Waves by Fog and Smoke

Comparison of radio-sounding profiles for cloud attenuation analysis in the tropical region

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