Advertisement

Pool and Riffle Sequences and Morphology of Lower Alaknanda River in Srinagar Valley (Garhwal Lesser Himalaya), India

  • Sapna SemwalEmail author
  • Devi Datt Chauniyal
Conference paper
Part of the Advances in Science, Technology & Innovation book series (ASTI)

Abstract

This study analyzes the pool-riffle sequences of the lower Alaknanda River within the context of mountain meandering river. It is based on the 1/50000 topographical map, CARTOSEAT1 image and field investigation. The data for 8 pools and 18 riffle of 11.5 km channel length are tabulated. The main controlling variables considered for the study are width, depth, spacing, bank full width, length and tectonic setting. The average depth of the pool is 7.75 m. The average width of the pool is 54 m while the average bank full width is 120 m. The average width and depth ratio of the pool is 7.74 which vary from 4 to 12.5. The average spacing of the pool is calculated about 1.4 km. The channel width at riffle is significantly greater than that at the pool. The trend of the regression line shows that there is a negative correlation between depth and width variables and bank full width. The results of the investigation show that the pools and riffles are controlled by longitudinal and transverse tectonic features and gradient of the river.

Keywords

Pool-riffle Bank full Morphology Tectonic setting River meander 

References

  1. 1.
    Bhowmik, N.G., Demissie, M.: Bed material in pool and riffle. J. Hydrol. Div. 108(10), 1227–1231 (1982)Google Scholar
  2. 2.
    Carling, P.A., Orr, H.G.: Morphology of riffle and pool sequences in the river severn, England. Earth Surf. Process. Landf. 25, 369–384 (2000)Google Scholar
  3. 3.
    Hudson, P.F.: Pool-riffle morphology in an actively migrating alluvial channel: the lower Mississippi river. Phys. Geogr. 23(2), 154–169 (2002)CrossRefGoogle Scholar
  4. 4.
    Keller, E.A., Melhorn, W.N.: Rhythmic spacing and origin of pools and riffles. Geol. Soc. Am. Bull. 89, 723–730 (1980)CrossRefGoogle Scholar
  5. 5.
    Kinghton, A.D.: Fluvial Forms and Processes. Wiley, New York (1998)Google Scholar
  6. 6.
    Leopold, L.B.: Fluvial Process in Geomorphology. W.H. Freeman, San Francisco (1994)Google Scholar
  7. 7.
    Valdiya, K.S.: Rectivation of terrain defining boundary thrust in Central sector of The Himalaya: implications. Curr. Sci. 81, 1418–1430 (2001)Google Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of GeographyD.B.S. (PG) CollegeDehra DunIndia
  2. 2.Department of GeographyHNB Garhwal UniversitySrinagar (Garhwal)India

Personalised recommendations