the.com/subsurface water
the water that never checks in but pays rent on every ecosystem above it.
means water existing beneath the ground surface, held in soil pores and rock fractures, ranging from shallow soil moisture to deep aquifers.
from hydrogeology split water into surface and subsurface categories once scientists realized rivers were just the visible tip of a much larger, slower system moving through rock and soil.
speedcan move as slowly as a foot per year
volumefar exceeds all rivers and lakes combined
agesome pockets are thousands of years old
discovery methodoften found by drilling, not digging