It is analyzed on the occurrences of spring snowmelt floods and their hazartds in themiddle part of the northern slope of Tianshan Mountains.

• 天山北坡是新疆多雪地区之一，其中乌苏至乌鲁木齐一带的山麓地带，和山前平原纳洪地区春季融雪洪水及其灾害频繁。