Sentence examples for sand movement from inspiring English sources

In contrast, later sand movement seems to be connected with human activity.

Current theoretical and experimental studies of windblown sand movement are mostly conducted on flat sand surfaces.

The vegetational disturbance and sand movement were probably triggered by a climatic change to cooler conditions.

Seepage through sand bed channels in a downward direction (suction) reduces the stability of particles and initiates the sand movement.

As the altitude increases, the threshold velocity for sand movement linearly increases with altitude, and the sand transport per unit width decreases gradually.

The sites were selected near the apex of each dune as this represents the last depositional date and the least disturbed by sand movement.

Since most of the country is a desert, the sand movements surrounding the city pose a serious risk.

Investigating the mechanisms of wind-sand movement is essential to deeply understand sand storm and desertification process, and further to control the wind-sand hazards.

But even if that's true, is there value in the symbolism of efforts like the anti-tar sands movement?

This is where the urgency and solidarity and audacious determination of national organizations -- and residents across the country -- are desperately needed, on a par with the tar sands movement.

In a nod to the growing anti-tar sands movement in the U.S., the President also signaled in his Georgetown speech that he was concerned that the Keystone XL pipeline might lead to an increase in greenhouse gas emissions and that he would reject a permit for construction if it did.