Covariance specification and estimation to improve top-down Green House Gas emission estimates

Subhomoy Ghosh1,2, Israel Lopez-Coto3, Kuldeep Prasad4 and James R Whetstone4, (1)New York University Abu Dhabi, Abu Dhabi, United Arab Emirates, (2)National Institute of Standards and Technology, Gaithersburg, United States, (3)Stony Brook University, School of Marine and Atmospheric Sciences, Stony Brook, United States, (4)National Institute of Standards and Technology Gaithersburg, Gaithersburg, MD, United States