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Data Details

La’ang Co Changes Dataset (1972-2023)


ZENG Lin1LA Zhen1DEJI Yangzong*1NIU Xiaojun1
1 Climate Centre of Tibet Autonomous region，Lhasa 850000，China

DOI:10.3974/geodb.2024.02.02.V1

Published:Feb. 2024

Visitors：612       Data Files Downloaded：10      
Data Downloaded：4.87 MB      Citations：

Key Words：

La’ang Co,lake area,remote sensing,1972-2023

Abstract：

Using the Landsat series and GF1 remote sensing images as data sources, the authors developed vector boundary data of La’ang Co from 1972-2023 through manual visual interpretation, and calculated the corresponding lake area to obtain the La’ang Co changes dataset (1972-2023). The dataset includes the vector boundary and area of La’ang Co in 27 periods from 1972, 1977, 1994, 2000-2023. In which, the area changes during the half of century is 21.63 km² the largest area is 269.95 km² in 1977, the smallest is 248.32 km² in 2023. The spatial resolution of the dataset is 30 m. The dataset is archived in .shp data format, and consists of 189 data files with data size of 729 KB (compressed into 1 file with 498 KB).

Foundation Item：

Ministry of Science and Technology of P. R. China (2019QZKK020809, 2019QZKK0105-06); Science and Technology Department of Tibet (XZ202102YD0012C)

Data Citation：

ZENG Lin, LA Zhen, DEJI Yangzong*, NIU Xiaojun. La’ang Co Changes Dataset (1972-2023)[J/DB/OL]. Digital Journal of Global Change Data Repository, 2024. https://doi.org/10.3974/geodb.2024.02.02.V1.

References：


     [1]Che, X. H., Feng, M., Jiang, H., et al. Detection and analysis of Qinghai-Tibet Plateau lake area from 2000 to 2013 [J]. Journal of Geo-information Science, 2015, 17(1): 99-107.
     [2] Immerzeel, W. W., Beek, L. P. H. V., Bierkens, M. F. P. Climate change will affect the Asian water towers [J]. Science, 2010, 328: 1382-1385.
     [3] Zhu, L. P., Ju, J. T., Qiao, B. J., et al. Recent lake changes of the Asian water towers and their climate response: progress, problems and prospects [J]. Chinese Science Bulletin, 2019, 64(27): 2796-2806.
     [4] Xu, B. Q., Cao, J. J., James, H., et al. Black soot and the survival of Tibetan glaciers [J]. Proceedings of the National Academy of Sciences, 2009, 106(52): 22114-22118.
     [5] Dong, S. Y., Xue, X., You, Q. G., et al. Remote sensing monitoring of the lake area changes in the Qinghai--Tibet Plateau in recent 40 years [J]. Journal of Lake Sciences, 2014, 26(4): 535-544.
     [6] Zeng, L., Niu, X. J., Bian, D., et al. Remote sensing analysis of typical lakes area variation in the Tibetan Plateau [J]. Plateau Science Research, 2022, 6(3): 1-8.
     [7] Zhu, L. P., Xie, M. P., Wu, Y. H. Quantitative analysis of lake area variations and the influence factors from 1971 to 2004 in the Nam Co basin of the Tibetan Plateau [J]. Chinese Science Bulletin, 2010, 55: 1294-1303.
     [8] Yang, R. M., Zhu, L. P., Wang, Y. J., et al. Study on the variations of lake area & volume and their effect on the occurrence of outburst of MUDUI glacier lake in southeastern Tibet [J]. Progress in Geography, 2012, 31: 1133-1140.
     [9] Sun, M. Z., Liu, X., Wang, H. H., et al. Monitoring lake level change in La-ang Co from 1992 to 2020 using multi-altimeter data [J]. Journal of Remote Sensing, 2022, 26(1): 126-137.
     [10] Zhang, G. Q., Wang, M. M., Zhou, T., et al. Progress in remote sensing monitoring of lake area, water level, and volume changes on the Tibetan Plateau [J]. Journal of Remote Sensing, 2022, 26(1): 115-125.
     [11] Guo, L. P., Ye, Q. H., Yao, T. D., et al. The glacial landforms and the changes of glacier and lake area in the Mapam Yumco Basin in Tibetan Plateau based on GIS [J]. Journal of Glaciology and Geocryology, 2007, 29(4): 517-524.
     [12] Ye, Q. H., Yao, T. D., Zheng, H. X., et al. Glacier and lake co-variations and their responses to climate change in the Mapam Yumco Basin on Tibet [J]. Geographical Research, 2008, 27(5): 1178-1190.
     [13] Wan, W., Feng, X. Z., Xiao, P. F., et al. Differences of Lake color between Mapangyongcuo Lake and La'angcuo Lake based on remote sensing [J]. Remote Sensing Technology and Application, 2008, 23(6): 667-671.
     

Data Product:

ID Data Name Data Size Operation
1 La'angco_1972-2023.rar 498.52KB
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