Mathematics – Logic
Scientific paper
Jun 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3111502j&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 11, CiteID L11502
Mathematics
Logic
8
Hydrology: Groundwater Hydrology, Hydrology: Groundwater Quality, Hydrology: Groundwater Transport
Scientific paper
Tide-induced variations in subsurface air pressure, mainly between -1.0 to 2.0 kPa, are observed in coastal areas in Hong Kong. A two-dimensional model which couples the two-phase air-water flow in unsaturated and saturated zones successfully reproduces the observed air pressure under no rain conditions. The simulation reveals that significant increases in air pressure depend on the tidal rate, not necessarily on the amplitude of the sea level fluctuation. With rainfall, abnormal air pressure 2-9 times greater than without rainfall can be generated when the geological structure, the period and intensity of rain, and the timing of rainfall with respect to the maximum tidal rate combine favorably. This study provides a better understanding of the interactions among the sea tides, barometric pressure variations, groundwater and air-water flow, and rainfall. This natural coastal breathing phenomenon has relevance to the transfer of gases across the soil-seawater-atmosphere interface and to coastal environments around the world.
Jiao Jiu J.
Li Hailong
No associations
LandOfFree
Breathing of coastal vadose zone induced by sea level fluctuations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Breathing of coastal vadose zone induced by sea level fluctuations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Breathing of coastal vadose zone induced by sea level fluctuations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1757222