## 5 Results
### Dynamic Analysis of Night-time Light Changes at the Regional Scale
The night-time light levels on the Crimean Peninsula have increased to more than twice the level of night-time lights before the war, which is presumed to be the influence of the military lights caused by the mass accumulation of troops by the Russian army in Crimea. Figure 5: Schemes follow the same formatting. \begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline
**Region** & **Average Night-Time Light Ratio Index** & **Region** & **Average Night-Time Light Ratio Index** & **Region** & **Average Night-Time Light Ratio Index** & **Region** & **Average Night-Time Light Ratio Index** \\ \hline Chexassy & 0.05 & 0.17 & 0.11 & Khmelry’sky & 0.28 & 0.99 & 0.50 & Rivne & 0.15 & 0.53 & 0.59 \\ Chernihv & 0.12 & 0.22 & 0.23 & Kiev & 0.26 & 0.16 & 0.10 & Sevastopol  & 0.18 & 0.18 & 0.09 \\ Dripprop precursors\(\&\) 0.25 & 0.10 & 0.04 & Lyiv & 0.48 & 0.57 & 0.48 & Transcapthia & 0.51 & 0.89 & 0.78 \\ Donets\(\&\) 0.27 & 0.72 & 0.54 & Luhann*k & 0.10 & 0.64 & 0.20 & Vimnytsyna & 0.40 & 0.67 & 0.46 \\ Ivano- & 0.10 & 0.20 & 0.08 & Mybaluyiv & 0.17 & 0.13 & 0.06 & Volyn & 0.44 & 0.47 & 0.32 \\ Kharkiv & 0.13 & 0.17 & 0.04 & Odessa & 0.50 & 0.46 & 0.39 & Zapozhizhya & 0.10 & 0.26 & 0.20 \\ Kherenon & 0.76 & 0.71 & 0.65 & Poltava & 0.29 & 0.23 & 0.17 & Zyytomyr & 0.26 & 0.22 & 0.07 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: The average luminous ratio of each region in the three time periods (2.24–2.28, 3.1–3.18, 3.19–3.31). The sporadic night-time light ratio in the Zaporizhzhya region showed a relatively stable rise but never returned to its pre-war level. There are many factors affecting this. Strategically, Zaporizhzhya, which connects the Russian-controlled Crimea and Donets'k, is presumably a key target for Russia. The humanitarian corridor from Mariupol to Zaporizhzhya via Berdyans'k restricts the military operations of Russia and Ukraine to a certain extent, making it difficult to carry out large-scale conflicts. Under the bidirectional effect, the change in the night-time light ratio in Zaporizhzhya Oblast is most likely to be reflective of the overall trend of night-time light changes in Ukraine. During this period, the night-time light growth in other Ukrainian cities can be divided into two types one is a slow growth type, mainly concentrated in the regions within conflict zones. For example, in the Sumy, Kiev, Mykolayiv, and Kharkiv regions, the maximum light intensity at night has only been restored to 30-60% of the pre-war level. One possible reason for this is that the overall conflict situation briefly slowed, but smaller-scale battles still continued. The other is the abrupt growth type, occurring mainly in central and western Ukraine, far from the war zones, such as in the Khmel'nyts'kyy, Transcarpathia, and Vinnytsya regions, where changes to the night-time light ratio index are characterized by a return to pre-war levels and multiple peaks, with the continuous influx of refugees from the war zones, which has led to a continuous increase in night-time lights. From 19 March to 1 April, due to the re-escalation of the situation between Russia and Ukraine, the intensity of night-time light in Ukraine fell once again. In conclusion, the level of a region's sensitivity to conflict can be indicated by its region scale NTRL. The already-conflicted territory and the one next door are more susceptible to war; in terms of civilian sentiments, the region with a higher proportion of pro-Russian inhabitants is less sensitive to conflict.