## 4 Result
### Landslide Detection by SBAS  
Deformation results for the survey area were derived using the traditional temporal InSAR method (SBAS). Figure 6 illustrates the SBAS results from both the ascending and descending tracks. Negative blue values represent movement away from the satellite, while positive red values indicate deformation towards the satellite. Notably, most of the outlined landslides in both the ascending and descending SBAS results exhibit deformation, while areas lacking outlines generally show no deformation. This demonstrates the efficacy of our method in accurately detecting regions experiencing deformation. In the ascending results, two regions stand out with substantial deformation: the Suoertou landslide (A1) and the Zhongpai landslide (A11), as depicted in Figure 5a. The region with the most significant deformation showcases a rate of approximately \(-90.97\) mm/year, while the other region registers a rate of about \(-83.88\) mm/year. Similarly, in the orbit descent results shown in Figure 5b, these same landslides exhibit noticeable deformation. Additionally, the D28 landslide in the orbit descent results also demonstrates considerable deformation, measuring approximately \(-57.14\) mm/year. \begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline
**Landslide** & **Longitude** & **Latitude** & **Area** & **Elevation** & **Type** & **Landslide** & **Longitude** & **Latitude** & **Area** & **Elevation** & **Type** \\ \hline A/D1 & 104.330 & 33.801 & 3.144 & 1863 &
\begin{tabular}{c} Earth- \\ flow \\ \end{tabular} & A21 & 104.226 & 33.811 & 0.209 & 1625 & Slide \\ A/D2 & 104.328 & 33.790 & 1.676 & 1937 & Slide & A22 & 104.294 & 33.769 & 0.276 & 1742 & Slide \\ A/D3 & 104.392 & 33.772 & 0.288 & 1597 & Slide & A23 & 104.370 & 33.804 & 0.192 & 1647 & Slide \\ A/D4 & 104.414 & 33.747 & 1.672 & 1768 & Slide & A24 & 104.276 & 33.805 & 0.951 & 1908 & Slide \\ A/D5 & 104.400 & 33.739 & 0.258 & 1522 & Slide & A25 & 104.285 & 33.810 & 0.182 & 1930 & Slide \\ A/D6 & 104.418 & 33.730 & 0.645 & 1743 & Slide & A26 & 104.367 & 33.773 & 0.456 & 1626 & Slide \\ A/D7 & 104.401 & 33.639 & 1.222 & 2179 & Earth- & D20 & 104.390 & 33.781 & 0.342 & 1774 & Slide \\ A/D8 & 104.523 & 33.725 & 0.391 & 1566 & Slide & D21 & 104.408 & 33.740 & 0.104 & 1357 & Slide \\ A/D9 & 104.516 & 33.742 & 0.204 & 1665 & Slide & D22 & 104.450 & 33.717 & 0.0797 & 3108 & Slide \\ A/D10 & 104.340 & 33.620 & 0.204 & 2043 & Slide & D23 & 104.447 & 33.726 & 0.348 & 1676 & Slide \\ A/D11 & 104.500 & 33.736 & 3.690 & 1682 & Slide & D24 & 104.463 & 33.729 & 0.409 & 2136 & Slide \\ A/D12 & 104.385 & 33.647 & 0.440 & 2196 & Slide & D25 & 104.436 & 33.791 & 0.221 & 1564 & Slide \\ A/D13 & 104.384 & 33.641 & 0.412 & 2164 & Slide & D26 & 104.245 & 33.859 & 0.172 & 2356 & Slide \\ A/D14 & 104.510 & 33.623 & 0.180 & 1608 & Slide & D27 & 104.259 & 33.747 & 0.252 & 2096 & Slide \\ A/D15 & 104.543 & 33.644 & 0.424 & 1286 & Slide & D28 & 104.436 & 33.643 & 0.913 & 1876 & Slide \\ A/D16 & 104.537 & 33.783 & 0.435 & 1425 & Slide & D29 & 104.450 & 33.697 & 0.098 & 1720 & Slide \\ A/D17 & 104.502 & 33.791 & 0.539 & 2096 & Slide & D30 & 104.421 & 33.737 & 0.081 & 1984 & Slide \\ A/D18 & 104.416 & 33.759 & 0.470 & 1789 & Slide & D31 & 104.416 & 33.759 & 0.470 & 1838 & Slide \\ A/D19 & 104.507 & 33.690 & 0.159 & 1718 & Slide & D32 & 104.320 & 33.822 & 0.4523 & 2294 & Slide \\ A20 & 104.240 & 33.795 & 0.965 & 1593 & Slide & & & & & \\ \hline \hline \end{tabular} The criteria for classifying landslides are documented by [PERSON] [41].  
\end{table} 
Table 2: Landslide Detection Information Statistics for the Ascending and Descending Tracks. To compare the results of the proposed method and SBAS, we conducted a comparative analysis of the detected landslides and summarized them in Table 3. The multi-direction phase gradient stacking method identified 26 landslides in the ascending data, which is more than the SBAS, which only identified 19 landslides in the ascending data.