NCA-LDAS: Overview and Analysis of Hydrologic Trends for the National Climate Assessment.

ABSTRACT: Terrestrial hydrologic trends over the conterminous United States are estimated for 1980-2015 using the National Climate Assessment Land Data Assimilation System (NCA-LDAS) reanalysis. NCA-LDAS employs the uncoupled Noah version 3.3 land surface model at 0.125°× 1258° forced with NLDAS-2 meteorology, rescaled Climate Prediction Center precipitation, and assimilated satellite-based soil moisture, snow depth, and irrigation products. Mean annual trends are reported using the nonparametric Mann-Kendall test at p < 0.1 significance. Results illustrate the interrelationship between regional gradients in forcing trends and trends in other land energy and water stores and fluxes. Mean precipitation trends range from +3 to +9 mm yr^-1 in the upper Great Plains and Northeast to -1

SUBMITTER: Jasinski MF 

PROVIDER: S-EPMC7477810 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature