commission on climate change and the oceancommulative frequency curvecommulative in flowcompact storagecompactioncompanion cropscompanion matrixcompensated erosioncompensating reservoircompex slopcompilercomplete method of thomascomplete splinecomplex covercomplex surface complex slopcompomentcomposite stormcompostcompound cross sectioncompound hydrographcompound land utilizationcompound sectioncompressioncompression wavecomputational stabilitycomputer modelingcomputer simulatorconcaveconcave slopconcentrationconceptual modelconcertioncondensationcondensation nucleicondensation pressurecondensation temperatureconditionconditional instabilityconditionally consistentconditionally stableconductionconduction heatconduitcone indexcone of depressioncone penetrometerconfigurationconfined water wellconfining bedconfining beds