Landsat 8全色影像阴影的扁平冰山出水高度提取
Extracting icebergs freeboard from the shadows in Landsat 8 panchromatic images
- 2022年26卷第7期 页码：1450-1458
纸质出版日期： 2022-07-07
DOI： 10.11834/jrs.20219383
扫 描 看 全 文
浏览全部资源
扫码关注微信
摘要
冰山出水高度是测量冰山厚度进而估算冰山体积的一个重要几何参数，是定量评估冰山对海洋的淡水输入量的基础。冬季冰山在海冰上成影且阴影较长，本文提出利用阴影测高模型高精度测量冰山出水高度的方法。试验选择2016年8月29日、9月7日和9月16日中心太阳高度角分别为5.43°、7.49°和11.01°的3期Landsat 8全色15 m影像，以独立扁平冰山为例，自动提取冰山在海冰上的阴影长度计算冰山出水高度，并利用不同时相同名成影点进行交叉验证评估测量精度。结果显示：阴影长度测量误差优于1个像元，在太阳高度角低于11.01°时，全色15 m影像提取的冰山出水高度均方根误差（RMSE）低于2.0 m，平均绝对误差（MAE）低于1.5 m。由此表明：在冬季低太阳高度角下，Landsat 8全色15 m影像可用于高精度测量冰山出水高度，具有大范围测量南极冰山出水高度的潜力。
Abstract
Icebergs are formed either by the calving of the seaward margins of floating glacier tongues or ice shelves or by the fragmentation of existing icebergs. Mass loss caused by iceberg calving represents up to half of the total loss of mass from the Antarctic ice shelves. As they melt and drift with the ocean currents
icebergs provide a significant source of freshwater input to the surface layer of the ocean
enough to affect the stability of stratification in the upper ocean. Any increased freshwater in iceberg discharge
or ice shelf melt
likely has a major impact on the ocean circulation by delivering sufficient freshwater
which will play a critical role in many geophysical and biological processes. The iceberg freeboard is an important geometric parameter for measuring the thickness of an iceberg and estimating its volume. Because of the paucity of high-precision measurements on iceberg thickness
large uncertainties exist on the iceberg’s ice volume estimation of the Southern Ocean. The freeboard of large icebergs has been successfully extracted using the altimetry method. These large uncertainties exist
however
because of the insufficient altimeter coverage of various icebergs. On the basis of the fact that an iceberg can cast an elongated shadow on the surface of sea ice in winter
this study proposes a method to measure the iceberg freeboard by using shadow length and the predefined or estimated solar elevation angle. Three Landsat 8 panchromatic images with center solar elevation angles of 5.43°
7.49°
and 11.01° on August 29
September 7
and September 16 in 2016
respectively
are selected to test our method. The shadow lengths of five isolated tabular icebergs are automatically extracted to calculate the freeboard height. For an accuracy assessment
we perform cross-validation on the matching points at different times. Results show that the measurement error of shadow length is less than one pixel. When the sun elevation angle is lower than 11.01°
the root-mean-square error (RMSE) of the iceberg freeboard from the 15 m panchromatic image is less than 2.0 m
and the mean absolute error (MAE) is less than 1.5 m. The experiment shows that under the angle of low solar elevation in winter
the Landsat 8 15 m panchromatic images can be used for high-precision measurement of the iceberg freeboard and has the potential to measure the Antarctic iceberg freeboard at a large scale.
关键词
遥感南极冰山出水高度阴影测高Landsat 8
Keywords
remote sensingAntarcticicebergsfreeboardshadow altimetryLandsat 8
references
Blankenship D D, Morse D L, Holt J W, Peters M E and Kempf S D. 2002. An airborne radioglaciological survey of iceberg B15A on november 23, 2001//Proceedings of American Geophysical Union, Fall Meeting 2002. San Francisco: AGU
Cheng F and Thiel K H. 1995. Delimiting the building heights in a city from the shadow in a panchromatic SPOT-image—Part 1. Test of forty-two buildings. Remote Sensing, 16(3): 409-415 [DOI: 10.1080/01431169508954409http://dx.doi.org/10.1080/01431169508954409]
Dibarboure G, Pujol M I, Briol F, Le Traon P Y, Larnicol G, Picot N, Mertz F and Ablain M. 2011. Jason-2 in DUACS: updated system description, first tandem results and impact on processing and products. Marine Geodesy, 34(3/4): 214-241 [DOI: 10.1080/01490419.2011.584826http://dx.doi.org/10.1080/01490419.2011.584826]
Feng Z Z, Cheng X, Kang J, Hui F M, Liu Y, Cheng C, Wang F, Wang X W, Zhao C, Zhao S and Chen T B. 2013. Review of the NASA IceBridge mission: progress and prospects. Journal of Remote Sensing, 17(2): 399-422
冯准准, 程晓, 康婧, 惠凤鸣, 刘岩, 程铖, 王芳, 王显威, 赵晨, 赵硕, 陈廷彪. 2013. 美国NASA冰桥(IceBridge)科学计划: 进展与展望. 遥感学报, 17(2): 399-422 [DOI: 10.11834/jrs.20131337http://dx.doi.org/10.11834/jrs.20131337]
Gladstone R M, Bigg G R and Nicholls K W. 2001. Iceberg trajectory modeling and meltwater injection in the Southern Ocean. Journal of Geophysical Research: Oceans, 106(C9): 19903-19915 [DOI: 10.1029/2000jc000347http://dx.doi.org/10.1029/2000jc000347]
He G J, Chen G, He X Y, Wang W and Liu D S. 2001. Extracting buildings distribution information of different heights in a city from the shadows in a panchromatic SPOT image. Journal of Image and Graphics, 6(5): 425-428
何国金, 陈刚, 何晓云, 王威, 刘定生. 2001. 利用SPOT图象阴影提取城市建筑物高度及其分布信息. 中国图象图形学报, 6(5): 425-428 [DOI: 10.3969/j.issn.1006-8961.2001.05.002http://dx.doi.org/10.3969/j.issn.1006-8961.2001.05.002]
Iqbal M. 1983. An Introduction to Solar Radiation. Amsterdam: Elsevier: 23-25 [DOI: 10.1016/B978-0-12-373750-2.X5001-0http://dx.doi.org/10.1016/B978-0-12-373750-2.X5001-0]
Irvin R B and McKeown D M. 1989. Methods for exploiting the relationship between buildings and their shadows in aerial imagery. IEEE Transactions on Systems, Man, and Cybernetics, 19(6): 1564-1575 [DOI: 10.1109/21.44071http://dx.doi.org/10.1109/21.44071]
Li T, Shokr M, Liu Y, Cheng X, Li T, Wang F and Hui F M. 2018. Monitoring the tabular icebergs C28A and C28B calved from the Mertz ice tongue using radar remote sensing data. Remote Sensing of Environment, 216: 615-625 [DOI: 10.1016/j.rse.2018.07.028http://dx.doi.org/10.1016/j.rse.2018.07.028]
Li T, Zhang B G, Cheng X, Westoby M J, Li Z H, Ma C, Hui F M, Shokr M, Liu Y, Chen Z Q, Zhai M X and Li X Q. 2019. Resolving fine-scale surface features on polar sea ice: a first assessment of UAS photogrammetry without ground control. Remote Sensing, 11(7): 784 [DOI: 10.3390/rs11070784http://dx.doi.org/10.3390/rs11070784]
Liu Y, Cheng X, Hui F M, Wang F and Chi Z H. 2013. Antarctic iceberg calving monitoring based on EnviSat ASAR images. Journal of Remote Sensing, 17(3): 479-494
刘岩, 程晓, 惠凤鸣, 王芳, 迟肇惠. 2013. 利用EnviSat ASAR数据监测南极冰架崩解. 遥感学报, 17(3): 479-494
Liu Y, Moore J C, Cheng X, Gladstone R M, Bassis J N, Liu H X, Wen J H and Hui F M. 2015. Ocean-driven thinning enhances iceberg calving and retreat of Antarctic ice shelves. Proceedings of the National Academy of Sciences of the United States of America, 112(11): 3263-3268 [DOI: 10.1073/pnas.1415137112http://dx.doi.org/10.1073/pnas.1415137112]
Markus T, Neumann T, Martino A, Abdalati W, Brunt K, Csatho B, Farrell S, Fricker H, Gardner A, Harding D, Jasinski M, Kwok R, Magruder L, Lubin D, Luthcke S, Morison J, Nelson R, Neuenschwander A, Palm S, Popescu S, Shum C, Schutz B E, Smith B, Yang Y K and Zwally J. 2017. The ice, cloud, and land elevation satellite-2 (ICESat-2): science requirements, concept, and implementation. Remote Sensing of Environment, 190: 260-273 [DOI: 10.1016/j.rse.2016.12.029http://dx.doi.org/10.1016/j.rse.2016.12.029]
Meeus J. 1991. Astronomical Algorithms. Richmond: Willmann-Bell: 231-235
Ran Q, Chi Y B, Wang Z Y, Ding L and Yan M. 2008. Research on building height estimation using shadow information using Beijing-1 small satellite images. Remote Sensing Information, (4): 18-21
冉琼, 迟耀斌, 王智勇, 丁琳, 严明. 2008. 基于“北京一号”小卫星影像阴影的建筑物高度测算研究. 遥感信息, (4): 18-21 [DOI: 10.3969/j.issn.1000-3177.2008.04.005http://dx.doi.org/10.3969/j.issn.1000-3177.2008.04.005]
Schwarz J N and Schodlok M P. 2009. Impact of drifting icebergs on surface phytoplankton biomass in the Southern Ocean: ocean colour remote sensing and in situ iceberg tracking. Deep Sea Research Part I: Oceanographic Research Papers, 56(10): 1727-1741 [DOI: 10.1016/j.dsr.2009.05.003http://dx.doi.org/10.1016/j.dsr.2009.05.003]
Shettigara V K and Sumerling G M. 1998. Height determination of extended objects using shadows in SPOT images. Photogrammetric Engineering and Remote Sensing, 64(1): 35-44
Silva T A M, Bigg G R and Nicholls K W. 2006. Contribution of giant icebergs to the Southern Ocean freshwater flux. Journal of Geophysical Research: Oceans, 111(C3): C03004 [DOI: 10.1029/2004JC002843http://dx.doi.org/10.1029/2004JC002843]
Tournadre J, Bouhier N, Boy F and Dinardo S. 2018. Detection of iceberg using delay Doppler and interferometric cryosat-2 altimeter data. Remote Sensing of Environment, 212: 134-147 [DOI: 10.1016/j.rse.2018.04.037http://dx.doi.org/10.1016/j.rse.2018.04.037]
Tournadre J, Bouhier N, Girard-Ardhuin F and Rémy F. 2015. Large icebergs characteristics from altimeter waveforms analysis. Journal of Geophysical Research: Oceans, 120(3): 1954-1974 [DOI: 10.1002/2014JC010502http://dx.doi.org/10.1002/2014JC010502]
Wang X W, Cheng X, Gong P, Shum C K, Holland D M and Li X W. 2014. Freeboard and mass extraction of the disintegrated Mertz ice tongue with remote sensing and altimetry data. Remote Sensing of Environment, 144: 1-10 [DOI: 10.1016/j.rse.2014.01.002http://dx.doi.org/10.1016/j.rse.2014.01.002]
Wang X W, Cheng X, Huang H B and Li Z. 2013. DEM production for dome-a combining GPS and GLAS data. Journal of Remote Sensing, 17(2): 439-451
王显威, 程晓, 黄华兵, 李展. 2013. 结合GPS和GLAS数据生成Dome-A区域DEM. 遥感学报, 17(2): 439-451 [DOI: 10.11834/jrs.20132036http://dx.doi.org/10.11834/jrs.20132036]
Xie J F and Li Y M. 2004. The extractinon of building distribution information of different heights in a city from the shadows in a IKONOS image. Remote Sensing For Land and Resources, (4): 4-6
谢军飞, 李延明. 2004. 利用IKONOS卫星图像阴影提取城市建筑物高度信息. 国土资源遥感, (4): 4-6 [DOI: 10.3969/j.issn.1001-070X.2004.04.002http://dx.doi.org/10.3969/j.issn.1001-070X.2004.04.002]
Zhang X M, He G J, Wang W, Jiao W L and Wang Q J. 2011. Extracting buildings height and distribution information in Tianjin city from the shadows in ALOS images. Spectroscopy and Spectral Analysis, 31(7): 2003-2006
张晓美, 何国金, 王威, 焦伟利, 王钦军. 2011. 基于ALOS卫星图像阴影的天津市建筑物高度及分布信息提取. 光谱学与光谱分析, 31(7): 2003-2006 [DOI: 10.3964/j.issn.1000-0593(2011)07-2003-04http://dx.doi.org/10.3964/j.issn.1000-0593(2011)07-2003-04]
Zwally H J, Schutz B, Abdalati W, Abshire J, Bentley C, Brenner A, Bufton J, Dezio J, Hancock D, Harding D, Herring T, Minster B, Quinn K, Palm S, Spinhirne J and Thomas R. 2002. ICESat’s laser measurements of polar ice, atmosphere, ocean, and land. Journal of Geodynamics, 34(3/4): 405-445 [DOI: 10.1016/S0264-3707(02)00042-Xhttp://dx.doi.org/10.1016/S0264-3707(02)00042-X]
文章被引用时，请邮件提醒。
提交
相关作者
暂无数据
相关机构
安徽大学 湿地生态保护与修复安徽省重点实验室
信息材料与智能感知安徽省实验室
中国农业科学院 农业资源与农业区划研究所
华东师范大学 地理信息科学教育部重点实验室
华东师范大学 地理科学学院
选择翻译语言
- 地址：北京市海淀区北四环西路19号 《遥感学报》编辑部 邮编：100190
- 联系电话：010-58887052 Email：nrsb@aircas.ac.cn
- 技术支持由北京北大方正电子有限公司提供 京ICP备20021838号-9
京公网安备11010802024621 - 本系统建议在Chrome、 IE9+ 以上版本浏览器阅读本站内容，360浏览器请切换至极速模式
- Cookies帮助我们提供服务并提供个性化体验。使用本网站，即表示您同意我们使用Cookies
0
回到顶部