Figure 4
From: Time-varying land subsidence detected by radar altimetry: California, Taiwan and north China
(a) Vertical displacement rates derived from TP, J1 and J2 over 1992–2015 in the San Joaquin Valley along TP-043. Inserted are two Landsat satellite images: the left image shows the region with an anomalous change of subsidence marked by the red star along TP-043 in Box 1 (dashed line). Box 2 shows the region with the maximum subsidence (the cumulative subsidence at red dot is 206 cm over 1992- 2015). The right image shows a cattle farm around the red dot. Box 3 shows an area with varying rates. (b) vertical displacement rates in central Taiwan along TP-051. The J1-derived rates contain large uncertainties in central Taiwan and are not shown here. Inserted is a SPOT satellite image showing a tire factory in Box 4 (courtesy of Center for Space and Remote Sensing Research, National Central University). Box 5 covers the major subsidence feature. GMT36 V5.1.3 is used to plot Fig. 4 (http://gmt.soest.hawaii.edu/). The Landsat images were provided by: U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center, 2015, Landsat products and services: EROS, Glovis Web page, accessed 29 September 2015 at http://glovis.usgs.gov/.
