| 基于时序MODIS反射率产品统计检验方法的土地覆盖更新 |
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| 引用本文： | 康峻,牛铮,高帅,范闻捷,贾坤.基于时序MODIS反射率产品统计检验方法的土地覆盖更新[J].遥感技术与应用,2014,29(2):309-314. |
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| 作者姓名： | 康峻 牛铮 高帅 范闻捷 贾坤 |
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| 作者单位： | (1.中国科学院遥感与数字地球研究所 遥感科学国家重点实验室,北京 100101;
2.北京大学 地球与空间科学学院,北京 100871;
3.北京师范大学 全球变化与地球科学研究院,北京 100875) |
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| 基金项目： | 973计划项目(2013CB733405,2010CB950603),公益性行业(气象)科研专项经费(GYHY201006042),国家自然科学基金项目(41201345)。 |
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| 摘 要： | 土地覆盖产品的生产是遥感领域的研究热点。全球范围土地覆盖产品因其在空间范围上的巨大尺度,生产周期较长,因此产品的时间跨度也很大,需要具有与之相对应的快速生成与更新技术,以提高产品的时间分辨率。使用MODIS历史土地覆盖产品和反射率产品,采用平均值显著性统计检验的思想,实现土地覆盖产品的快速更新。在MODIS条带号为h26v05的结果中选取宁夏自治区作为检验样区,通过目视检验和精度评价的方法对土地覆盖更新结果进行检验,总体精度为90.0290%。对水、混交林、草原、城市和建成区、裸地或低植被覆盖地变化的趋势和变化原因进行分析论证,表明采用平均值显著性统计检验的思想使用时序反射率产品对土地覆盖产品进行自动化快速更新是可行的。
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| 关 键 词： | 土地覆盖产品 遥感 MODIS 统计检验 |
| 收稿时间： | 2013-03-01 |
Land Cover Update Supported by Statistical Test Method based on Time-series MODIS Surface Reflectance Products |
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| Kang Jun,Niu Zheng,Gao Shuai,Fan Wenjie,Jia Kun.Land Cover Update Supported by Statistical Test Method based on Time-series MODIS Surface Reflectance Products[J].Remote Sensing Technology and Application,2014,29(2):309-314. |
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| Authors: | Kang Jun Niu Zheng Gao Shuai Fan Wenjie Jia Kun |
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| Affiliation: | (1.The State Key Laboratory of Remote Sensing Science,Institute of Remote Sensing;
and Digital Earth,Chinese Academy of Sciences,Beijing 100101,China;;
2.Peking University,School of Earth and Space Sciences,Beijing 100871,China;;
3.College of Global Change and Earth System Science,Beijing Normal University,Beijing 100875,China) |
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| Abstract: | Land cover production is a hot research topic in remote sensing.Because of the huge spatial scales,global land cover products have longer production cycles,which lead to a large time scale gap in two adjacent products.Correspondingly,rapid generation and update technology is required to improve the time resolution of the global land cover products.Taking the method of mean significant statistical test to realize the rapid renewal of land cover type product using data of historical MODIS Land Cover Type products and Surface Reflectance products.The study data of Ningxia autonomous region in one MODIS tile whose tile identifier is h26v05 has passed visual inspection and accuracy assessment;the overall accuracy is 90.03%.By analyzing and demonstrating trends and reasons for the changes of water bodies,mixed forests,grasslands,urban areas and barren or sparsely vegetated.The result shows that taking the method of mean significant statistical test to realize the automatic rapid renewal of land cover type product is feasible. |
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| Keywords: | Land cover product Remote sensing MODIS Statistical test |
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