• Title/Summary/Keyword: Remote Sensing Data

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Hyperspectral Remote Sensing for Agriculture in Support of GIS Data

  • Zhang, Bing;Zhang, Xia;Liu, Liangyun;Miyazaki, Sanae;Kosaka, Naoko;Ren, Fuhu
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.1397-1399
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    • 2003
  • When and Where, What kind of agricultural products will be produced and provided for the market? It is a commercial requirement, and also an academic questions to remote sensing technology. Crop physiology analysis and growth monitoring are important elements for precision agriculture management. Remote sensing technology supplies us more selections and available spaces in this dynamic change study by producing images of different spatial, spectral and temporal resolutions. Especially, the hyperspectral remote sensing should do play a key role in crop growth investigation at national, regional and global scales. In the past five years, Chinese academy of sciences and Japan NTT-DATA have made great efforts to establish a prototype information service system to dynamically survey the vegetable planting situation in Nagano area of Japan mainly based on remote sensing data. For such concern, a flexible and light-duty flight system and some practical data processing system and some necessary background information should be rationally made together. In addition, some studies are also important, such as quick pre-processing for hyperspectral data, Multi-temporal vegetation index analysis, hyperspectral image classification in support of GIS data, etc. In this paper, several spectral data analysis models and a designed airborne platform are provided and discussed here.

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Remote Sensing Data receiving and research activities using NOAA-AVHRR and Terra/Aqua-MODIS at ACRoRS, AIT

  • PHONEKEO Vivarad;SAMARAKOON Lal;YOKOYAMA Ryuzo
    • Proceedings of the KSRS Conference
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    • 2004.10a
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    • pp.31-33
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    • 2004
  • Two receiving systems were established at the Asian Center for Research on Remote Sensing (ACRoRS) to receive remote sensing data from NOAA AVHRR and Terra/Aqua MODIS sensors in October 1997 and May 2001, respectively. The data, which has been received in the research center, are very important to support and promote the remote sensing research activities for global environmental issues in Asia. Since the day of the establishment, many research and applications, which used these data, have been conducted. The data sets have been provided to researchers and users in many countries in the region to conduct research, to strengthen the research collaboration and education.

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REMOTE SENSING OF THE CHINA SEAS AT ORSI/OUC

  • HE, Ming-Xia;Zeng, Kan;Chen, Haihua;Zhang, Tinglu;Hu, Lianbo;Liu, Zhishen;Wu, Songhua;Zhao, Chaofang;Guan, Lei;Hu, Chuanmin
    • Proceedings of the KSRS Conference
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    • v.1
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    • pp.11-14
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    • 2006
  • We present an overview on the observation and research for the China seas using both field experiments and multi-sensor satellite data at ORSI/OUC, covering two topics: (1) Spatial and temporal distribution of internal waves in the China Seas and retrieval of internal wave parameters; (2) Retrieval, validation, and cross-comparison of multi-sensor ocean color data as well as ocean optics in situ experiments in the East China Sea. We also present an incoherent Doppler wind lidar, developed by ORSI, and its observation for marine-atmospheric boundary layer.

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A Comparative Review of the Satellite Remote Sensing (위성원격탐사에 관한 비교법적 고찰)

  • Kim, Young-Ju
    • The Korean Journal of Air & Space Law and Policy
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    • v.35 no.1
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    • pp.203-319
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    • 2020
  • The regulation of satellite remote sensing is generally included with the scope of statutes governing outer space activities. But not all states opted for dedicated satellite remote sensing regulation. The decision whether to do so depends in part on the specific capabilities of national satellite remote sensing programs. Five states that have dedicated statutes governing operations with remote sensing data are the United States, with its developed Landsat regime (the Land Remote Sensing Policy Act of 1992, LRSPA), Canada, with its Remote Sensing Systems Act, Germany, with its Satellite Data Securities Protection Act (SatDSiG), France, with its Law on Space Operations (LOS), Japan, with its Act on Ensuring Appropriate Handling of Satellite Remote Sensing Data. The major purpose of this article is to shed light on some legal issues surrounding remote sensing activities by comparative review. The paper analyzes international conventions or soft law and national law and policies relating to satellite remote sensing. It also offers some implications and suggestions for regulations of satellite remote sensing operations and satellite data.

Evaluation of Utilization of Satellite Remote Sensing Data for Drought Monitoring (가뭄 모니터링을 위한 인공위성 원격탐사자료의 활용 가능성 평가)

  • Won, Jeongeun;Son, Youn-Suk;Lee, Sangho;Kang, Limseok;Kim, Sangdan
    • Korean Journal of Remote Sensing
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    • v.37 no.6_2
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    • pp.1803-1818
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    • 2021
  • As the frequency of drought increases due to climate change, it is very important to have a monitoring system that can accurately determine the situation of widespread drought. However, while ground-based meteorological data has limitations in identifying all the complex droughts in Korea, satellite remote sensing data can be effectively used to identify the spatial characteristics of drought in a wide range of regions and to detect drought. This study attempted to analyze the possibility of using remote sensing data for drought identification in South Korea. In order to monitor various aspects of drought, remote sensing and ground observation data of precipitation and potential evapotranspiration, which are major variables affecting drought, were collected. The evaluation of the applicability of remote sensing data was conducted focusing on the comparison with the observation data. First, to evaluate the applicability and accuracy of remote sensing data, the correlations with observation data were analyzed, and drought indices of various aspects were calculated using precipitation and potential evapotranspiration for meteorological drought monitoring. Then, to evaluate the drought monitoring ability of remote sensing data, the drought reproducibility of the past was confirmed using the drought index. Finally, a high-resolution drought map using remote sensing data was prepared to evaluate the possibility of using remote sensing data for actual drought in South Korea. Through the application of remote sensing data, it was judged that it would be possible to identify and understand various drought conditions occurring in all regions of South Korea, including unmeasured watersheds in the future.

Preliminary Results On Radar Measurement Of Paddy Field Using C-Band Scatterometer System

  • Jamil, H.;Ali, A.;Yusof, S.;Ahmad, Z.;Mahmood, K.A.;Abu Bakar, S.B.;Aziz, H.;Ibrahim, N.;Koo, V.C.;Sing, L.K.
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.1002-1004
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    • 2003
  • A ground-based, C-band full polarimetric mobile Scatterometer system has been developed in Malaysia with collaboration between Malaysian Centre for Remote Sensing (MACRES) and Multimedia University (MMU). The main purpose of this system is to measure and monitor backscattering coefficient, ${\sigma }^0$, for earth terrain such as paddy fields, forest and soil surfaces. This paper describes the preliminary results on radar backscatter measurement from paddy field using the mobile C-band Scatterometer system. The measurement campaign was conducted at Sungai Burung area in April 2003. Real time data were collected using four polarization modes (HH, HV, VV and VH), at various incidence angles ranging from 0$^0$ to 60$^0$. The measurement data show consistent results as compared to other reports, which verify the capability of this Scatterometer system as a useful tool for remote sensing.

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A Southeast Asia Environmental Information Web Portal

  • Low, John;Liew, Soo-Chin;Lim, Agnes;Chang, Chew-Wai;Kwoh, Leong-Keong
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.1006-1008
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    • 2003
  • In this paper, we describe the development of a Southeast Asia environmental information web portal based on near real time MODIS Level 2 and higher level products generated from the direct broadcast data received at the Centre for Remote Imaging, Sensing and Processing (CRISP). This web portal aims to deliver timely environmental information to interested users in the region. Interpreted data will be provided instead of raw satellite data to reduce operational requirements on our system, and to enable users with limited bandwidths to have access to the system.

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A New Method of Remote Sensing Image Fusion Based on Modified Kohonen Networks

  • Shuhe, Zhao;Xiuwan, Chen;Junfeng, Chen;Yinghai, Ke
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.1337-1339
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    • 2003
  • In this article, a new remote sensing image fusion model based on modified Kohonen networks is given. And a new fusion rule based on modified voting rule was established. Select Shaoxing City as the study site, located at Zhejiang Province, P.R.China. The fusion experiment between Landsat TM data (30m) and IRS-C Pan data (5.8m) was performed using the given fusion method. The fusion results show that the new method can gain better result in apply ing to the lower hill area, and the whole classification accuracy was 10% higher than the basic Kohonen method. The confusion between the woodlands and the waterbodies was also diminished.

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