Abstract Tropical cyclones (TCs) are extreme weather events that frequently occur along the coast of northwestern Mexico, but an assessment of dry forest damage on this area after their impact had not been investigated yet. Thus, the effect of strong winds and high precipitation rates were analyzed for the first time on the dry forests of the southern tip of the Baja California peninsula. An analysis was performed on the development of the TC Odile (2014) with winds above 200 km/h and TC Lidia (2017) with high precipitation rates in excess of 400 mm/day. The study used remote sensing tools to calculate changes in land areas from the vegetation indices and the non-photosynthetic vegetation (NPV). The results showed a noticeable drop in the enhanced vegetation index (ΔEVI = 0.15) few days after Odile's landfall; after Lidia, the EVI values rose while the spatial distribution of changes on the normalized difference vegetation index (NDVI) and NPV showed the effect of large precipitation rates on vegetation damage. Intense winds from Odile triggered large changes in NDVI with an increase of NPV. This study provides insight into the sensitivity of this ecosystem to strong winds and heavy rainfall on the magnitude of vegetation damage.

中文翻译：

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使用多光谱遥感评估热带气旋对干旱森林的损害：以墨西哥南下加利福尼亚州为例

摘要 热带气旋 (TCs) 是墨西哥西北部沿海频繁发生的极端天气事件，但尚未对影响该地区的干旱森林破坏进行评估。因此，首次分析了强风和高降水率对下加利福尼亚半岛南端干燥森林的影响。对风速超过 200 公里/小时的 TC Odile（2014 年）和具有超过 400 毫米/天的高降水率的 TC Lidia（2017 年）的发展进行了分析。该研究使用遥感工具根据植被指数和非光合植被 (NPV) 计算土地面积的变化。结果显示，奥迪尔登陆几天后，增强植被指数（ΔEVI = 0.15）明显下降；在莉迪亚之后，EVI 值上升，而归一化植被指数 (NDVI) 和 NPV 变化的空间分布表明大降水率对植被损害的影响。随着 NPV 的增加，来自 Odile 的强风引发了 NDVI 的巨大变化。这项研究深入了解了该生态系统对强风和暴雨对植被破坏程度的敏感性。