انتخاب رویدادهای سیلاب و تعیین ویژگیهای آن، نخستین گامهای حیاتی برای تحلیلهای سیلاب محسوب میشوند. در این بررسی، برای بهدستآوردن دقیق اطلاعات کلیدی سیلاب، از مدل خودکار آستانهای، برای نمونهبرداری از سیلابها استفاده و یک روش خودکار برای تعیین ویژگیهای سیلاب با بهکارگیری روش تحلیل منحنی فروکش اصلی(MRC) ارائه گردید. همچنین از یک رابط کاربری گرافیکی (GUI) و جعبه ابزار برای این فرآیند در متلب استفاده شده است. نتایج نشان داد که روش پیشنهادی برای حوضه آبریز رودخانه کاجو با رژیم هیدرولوژیکی متغیر، عملکرد خوبی دارد. جعبه ابزار توسعهیافته را میتوان به راحتی در سایر حوضههای آبخیز برای نمونهبرداری سیلاب و توصیف وقایع سیلاب به کار برد. کاربرد عملی این رویکرد در تحلیلهای مدیریت سیلاب، طراحی سازههای هیدرولیکی، ارزیابی ریسک سیل و مطالعات تغییر اقلیم در حوضههای آبریز قابل توجه است. با این حال، وابستگی روش به کیفیت و پیوستگی دادههای جریان روزانه، نیاز به تنظیم پارامترهای آستانه و معیارهای استقلال در حوضههای با شرایط هیدرواقلیمی متفاوت، و چالشهای مربوط به تفکیک دقیق جریان پایه از جمله محدودیتهای قابل توجه این پژوهش محسوب میشوند. برای پژوهشهای آینده، پیشنهاد میشود این روش در حوضههای با رژیمهای هیدرولوژیکی متنوع اعتبارسنجی گردد.
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