We compare the random error statistics (uncertainties) of COSMIC (Constellation Observing
System for Meteorology, Ionosphere and Climate, C1) and COSMIC-2 (C2) radio occultation …

Estimation of uncertainties (random error statistics) of radio occultation (RO) observations is
important for their effective assimilation in numerical weather prediction (NWP) models …

This article examines the relationship between two apparently unrelated methods for
estimating error statistics or uncertainties of relevance to data assimilation (DA). The first …

Random uncertainties and vertical error correlations are estimated for three independent
data sets. The three collocated data sets are (1) refractivity profiles of radio occultation …

Previous studies that inferred the observation error statistics from the innovation statistics
can only provide the second moment of the error probability density function (pdf). However …

Methods to deal with systematic model errors are an increasingly important component of
modern data assimilation systems and their effectiveness has increased in recent years …

Observations represent the largest cost driver in the environmental prediction enterprise.
This dissertation aims to enhance the return on investment for satellite observatories by …

Random errors (uncertainties) in COSMIC radio occultation (RO) soundings, ERA-Interim
(ERAi) reanalyses, and high-resolution radiosondes (RS) are estimated in the northeast …

Data assimilation (DA) plays an indispensable role in modern weather forecasting. DA aims
to provide better initial conditions for the model by combining the model forecast and the …