TY - JOUR
T1 - Modelling the Apparent von Kármán Parameter in Thermally and Sedimentologically Stratified Air Flows
AU - Li, Bailiang
AU - Yan, Dongyue
AU - He, Yanyu
AU - Liu, Jianhui
N1 - Publisher Copyright:
© 2023. The Authors.
PY - 2023/2/16
Y1 - 2023/2/16
N2 - Through a field experiment on a sandy beach at Pingtan, China, we propose the first model to characterize the variability of apparent von Kármán parameter (Formula presented.) in the thermally and sedimentologically stratified air flows. The model shows that (Formula presented.) is negatively correlated to flux Richardson number as well as sediment transport rate. The atmospheric stability can be either from thermal stratification or sedimentological stratification, neglecting either of them can lead to substantial errors in predicting shear velocity and sediment transport rate.
AB - Through a field experiment on a sandy beach at Pingtan, China, we propose the first model to characterize the variability of apparent von Kármán parameter (Formula presented.) in the thermally and sedimentologically stratified air flows. The model shows that (Formula presented.) is negatively correlated to flux Richardson number as well as sediment transport rate. The atmospheric stability can be either from thermal stratification or sedimentological stratification, neglecting either of them can lead to substantial errors in predicting shear velocity and sediment transport rate.
KW - aeolian transport
KW - atmospheric instability
KW - atmospheric stability
UR - http://www.scopus.com/inward/record.url?scp=85147953471&partnerID=8YFLogxK
U2 - 10.1029/2022GL101662
DO - 10.1029/2022GL101662
M3 - Article
AN - SCOPUS:85147953471
SN - 0094-8276
VL - 50
JO - Geophysical Research Letters
JF - Geophysical Research Letters
IS - 3
M1 - e2022GL101662
ER -