Journal of Geographical Sciences >
Dynamic monitoring the infrastructure of major ports in Sri Lanka by using multi-temporal high spatial resolution remote sensing images
Author: Ge Yong (1972-), Professor, specialized in spatial data analysis and data quality assessment. E-mail: gey@lreis.ac.cn
Received date: 2017-11-02
Online published: 2018-07-20
Supported by
Key Program of Chinese Academy of Sciences, No.ZDRW-ZS-2016-6-3-4
Strategic Priority Research Program of Chinese Academy of Sciences, No.XDA20030302
Copyright
Colombo port and Hambantota port in Sri Lanka play a key role in transiting and supporting the shipping trade of “the 21st-Century Maritime Silk Road”. In recent years, Chinese enterprises have made huge investments in the infrastructure construction of Colombo port and Hambantota port. The construction progress and development trend of Colombo port and Hambantota port have been attracting the attention of Chinese investment enterprises and the society. In this paper, multi-temporal high spatial resolution remote sensing images are used to monitor the infrastructure construction condition of Colombo port and Hambantota port from 2010 to 2017. According to the interpreted infrastructure information of the two ports, the international container terminal of Colombo and Hambantota port have completed their constructions. By the end of 2017, the international container terminal of Colombo built the container yards with 28.8 ha and roads with 32.6 ha. At the south of the international container terminal of Colombo, the 62.2 ha of reclamation area were built for the planned port city. In Hambantota port, 77 ha of container yards, 48 ha of roads and 2.9 ha of oil storage areas were constructed during this period. Meanwhile, the analysis of potential storage capacity of Colombo port and Hambantota port shows that the throughput of Colombo port may increase by 3 million tons per year while the throughput of Hambantota port will be over its designed 2.5 million tons per year. These analysis results are able to provide a useful reference for Chinese investment enterprises and the related research of “the Belt and Road”.
GE Yong , CHEN Yuehong , JIA Yuanxin , GUO Xian , HU Shan . Dynamic monitoring the infrastructure of major ports in Sri Lanka by using multi-temporal high spatial resolution remote sensing images[J]. Journal of Geographical Sciences, 2018 , 28(7) : 973 -984 . DOI: 10.1007/s11442-018-1516-7
Figure 1 Study areas. (a) Spatial location of Colombo port and Hambantota port in Sri Lanka; (b) Local details of Colombo port and Hambantota port |
Table 1 Information about high spatial resolution remote sensing images |
Port | Source of images | Acquisition date |
---|---|---|
Colombo | Digital Globe | March 11, 2010 |
Digital Globe | November 12, 2011 | |
Digital Globe | October 13, 2012 | |
Digital Globe | October 13, 2013 | |
Digital Globe | November 7, 2014 | |
Digital Globe | February 16, 2015 | |
WV-2 | December 22, 2015 | |
Digital Globe | April 25, 2016 | |
BJ-2 | February 3, 2017 | |
Port | Source of images | Acquisition date |
Hambantota | Digital Globe | July 26, 2010 |
Digital Globe | May 7, 2012 | |
CNES Airbus | July 16, 2014 | |
WV-2 | October 7, 2015 | |
BJ-2 | July 19, 2016 | |
Pleiades | January 5, 2017 |
Figure 2 Flowchart of this study |
Figure 3 Land cover maps of Colombo port in 2010 (a) and 2017 (b) |
Figure 4 Infrastructure elements of Colombo port in 2010 (a), 2011 (b), 2012 (c), 2013 (d), 2014 (e), 2015 (February) (f), 2015 (December) (g), 2016 (h), and 2017 (i) |
Table 2 Area of infrastructure elements of Colombo port (ha) |
Element | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 (February) | 2015 (December) | 2016 | 2017 |
---|---|---|---|---|---|---|---|---|---|
Supporting built-up | 102.9 | 103.5 | 146.2 | 168.0 | 157.1 | 157.4 | 157.4 | 176.0 | 176.6 |
Reclamation area | 16.0 | 53.8 | 44.5 | 20.5 | 21.3 | 28.9 | 28.9 | 5.7 | 27.6 |
Container yards | 48.2 | 48.2 | 48.2 | 55.4 | 77.0 | 77.0 | 77.0 | 77.0 | 77.0 |
Roads | 36.3 | 36.3 | 47.1 | 54.4 | 68.9 | 69.0 | 69.0 | 75.7 | 75.7 |
Figure 5 Land cover maps of Hambantota port in 2010 (a) and 2017 (b) |
Figure 6 Infrastructure elements of Hambantota port in 2010 (a), 2012 (b), 2014 (c), 2015 (d), 2016 (e), and 2017 (f) |
Table 3 Area of infrastructure elements of Hambantota port (ha) |
Element | 2010 | 2012 | 2014 | 2015 | 2016 | 2017 |
---|---|---|---|---|---|---|
Oil tank yards | 0.00 | 2.88 | 2.88 | 2.88 | 2.88 | 2.88 |
Supporting built-up | 13.87 | 27.09 | 39.03 | 51.88 | 44.68 | 44.68 |
Reclamation area | 39.72 | 39.72 | 4.96 | 147.21 | 60.83 | 0.00 |
Container yards | 0.63 | 6.76 | 16.76 | 38.54 | 77.60 | 77.60 |
Roads | 16.56 | 37.14 | 64.16 | 64.26 | 84.06 | 84.06 |
Excavated area | 0.00 | 0.00 | 96.49 | 0.00 | 94.21 | 0.00 |
The authors have declared that no competing interests exist.
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