Not all rainfall becomes surface runoff. Subrahmanyam covers the losses that occur during a storm event.
As for the PDF availability, I couldn't find a direct link to download the book. However, I can suggest some possible sources where you might find the PDF:
The book covers the complete cycle of water movement through the earth-atmosphere system. It is specifically designed to meet the academic requirements of undergraduate civil engineering students and aligns closely with competitive exam syllabi like the Graduate Aptitude Test in Engineering (GATE) and the Indian Engineering Services (IES/ESE). Key Subjects Covered
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Definition, hydrological cycle, and application. Precipitation: Forms, measurement, and data analysis.
Modern revisions address shifting rainfall patterns and extreme weather events.
Dr. K. Subrahmanyam was a distinguished professor of civil engineering at the Indian Institute of Technology (IIT) Kanpur. His expertise in fluid mechanics, water resources, and hydrology culminated in textbooks renowned for their clarity, pedagogical structure, and practical application. His writing bridges the gap between complex mathematical modeling and real-world engineering solutions. 📑 Core Topics Covered in the Book Not all rainfall becomes surface runoff
Factors influencing runoff volume and peak discharge.
National digital repositories, such as India's National Digital Library (NDL), occasionally offer scanned sections or older editions for registered students.
Covers types and forms of precipitation, data measurement techniques, and the estimation of missing rainfall data. However, I can suggest some possible sources where
Over 150 new step-by-step numerical problems based on recent institutional exam trends.
Introduction of the Inverse Distance Weighting (IDW) method for missing data estimation. India-Specific Data: