What does moon blanched land refer to in the poem dover beach?

In the poem "Dover Beach" by Matthew Arnold, the phrase "moon blanched land" refers to the coastline of England as it appears under the light of the moon. The moon's light casts a pale, silvery glow over the landscape, giving it a blanched or bleached appearance. This imagery suggests a sense of desolation and emptiness, as the land is devoid of color and vibrancy under the moon's cold light. The phrase also contributes to the overall atmosphere of melancholy and contemplation that pervades the poem.