The phrase "more shallow than" is correct and usable in written English.
You can use it to compare two things in terms of their depth or lack thereof. For example, "The lake was much more shallow than expected."
Apparently, her grief was deemed more shallow than that of a spouse.
And, men being far more shallow than women, it actually doesn't play to our strengths in the mating ballet.
That occurred in waters that were significantly calmer and more shallow than the wells proposed in the Great Australian Bight.
The Bush administration has completed a study of the economic effect of last year's $1.35 trillion, 10-year tax cut, and concluded that it has helped make the recession more shallow than it would otherwise have been.
That was when the euro area finally emerged from its double-dip recession, which though more shallow than the first recession caused by the financial crisis, lasted even longer.
On a human level, his comprehension of other people is far more shallow than theirs is, and that's the basic problem that he's had from the beginning of his career, the fundamental shallowness that you get from a propagandist".
The era has generated more shallow certitude than lasting insight, with most commentators too intent on justification or condemnation to explore the harder questions that the conflict raises.
In 2010, BP was responsible for the world's largest oil spill – the Deepwater Horizon spill in the Gulf of Mexico – which occurred in calmer and more shallow waters than those in the Bight.
They are also frustrated by what they call state officials' "unwillingness" to consider new, state-of-the-art sewer systems that use smaller pipes (thus, more shallow trenches) than the traditional eight-inch sewer pipes used in most municipalities, she added.
It is unclear what sort of modelling BP has conducted of an oil leak in the bight, which is a major concern to conservationists since BP was responsible for the world's biggest oil leak – the Deepwater Horizon spill of 2010 in the Gulf of Mexico – which occurred in calmer and more shallow waters than those in the bight.
PRV has a positive trend in the scaling relationship with significant slopes but they are more-shallow than predicted.
