What's the difference between inundation and landflood?

Inundation

Definition:

(n.) The act of inundating, or the state of being inundated; an overflow; a flood; a rising and spreading of water over grounds.
(n.) An overspreading of any kind; overflowing or superfluous abundance; a flood; a great influx; as, an inundation of tourists.

Example Sentences:

(1) That was what the earlier debate over “currency wars” – when emerging markets complained about being inundated by financial inflows from the US – was all about.
(2) Allen's team has used the new technique to work out whether global warming worsened the UK floods in autumn 2000, which inundated 10,000 properties, disrupted power supplies and led to train services being cancelled, motorways closed and 11,000 people evacuated from their homes - at a total cost of £1bn.
(3) Where basement membrane and perivascular clefts were not yet inundated with HRP, sites of vesicular emptying of HRP at the tissue front were identified.
(4) He said since he made those comments he had been "inundated with accounts from people … saying there are indeed many cases where people are left without benefits, without any support, for sometimes weeks on end".
(5) Yet, when Summers' name came up, the White House was inundated with petitions: 20 senators opposing his nomination this summer , 300 economists (300!)
(6) There have been dozens of inundations in the course of the world's history, and whoever wrote this bit of the Bible had probably experienced one.
(7) As a second year social work student, I'm inundated with lots of information, from work placements and lectures to reading lists.
(8) The islands that make up the Maldives are threatened with complete inundation, probably by the end of the century, as ice sheets melt and sea levels rise catastrophically, thanks to global warming.
(9) As concerns the valence of the natural focus, the most important was the inundated forest in the Drnholec locality.
(10) Crop-producing areas have been inundated, dealing a crippling blow to the agriculture-based economy and threatening a food crisis.
(11) We are looking to make sure the international community can assist in the resettlement exercise and rebuilding some of the communities.” Climate change is likely to be a massive driver of forced migration over the next century, as densely populated, low-lying areas become unliveable because of rising sea levels, inundation, and salinity.
(12) The result is the inundation of islands from higher tides and surges.
(13) Mollath has been inundated with public support in the form of thousands of letters and internet posts, many comparing his fight to that of David versus Goliath.
(14) … and the effects on migration One of the many impacts of climate breakdown – aside from such minor matters as the inundation of cities, the loss of food production and curtailment of water supplies – will be the mass movement of people, to an extent that dwarfs current migration.
(15) Small island states such as Tuvalu and the Maldives are already threatened by inundation.
(16) One other issue is raised in Tewkesbury: the response of Severn Trent to the inundation of its water treatment plant at The Mythe, which left 140,000 homes without running water.
(17) The floods inundated rice fields just as they were to be harvested.
(18) And at this rate we will never find out.” Among the sites worst affected by trawlers is Doggerland, a vast area that was inhabited during the Mesolithic period 8,000 years ago, but has since been inundated by the waters of the North Sea.
(19) Finding the earlier results generally applicable, it presents a model of the function of stimulus intensity control in schizophrenia, which suggests that acute schizophrenics are particularly vulnerable to being inundated by stimuli, and therefore, that in order to protect themselves, they tend to reduce the perceived intensity of stimuli.
(20) The Florida resort lies less than 10 feet above sea level; an increasing number of tropical storms are inundating the city; and it is built on a dome of porous limestone which is absorbing the rising seawater.