Abstract: The plenum-aerated biofilter (PA biofilter) is an unsaturated, single pass vertical flow biofilter with horizontal air plena within the media to enhance passive aeration. Plena enlarge the surface area of the air/media ...

Abstract: A problem associated with four-dimensional data assimilation in numerical models of the atmosphere is the excitation of spurious dynamical modes such as gravity-inertial waves. If the desired diagnostic restrictions on the ...

Abstract: Verification error covariance statistics for operational 12-hr prognoses of 300-mb heights and winds have been obtained. Based on these statistical data, optimal weightings on height and wind observations at a typical ...

Abstract: A straightforward method for estimating the spectral characteristics of spatially distributed fields is to collect a suitable quantity of station-to-station auto- and cross-covariance data, interpolate these onto a regular ...

Abstract: A methodology was developed to monitor and evaluate the removal of solids and associated constituents by a nutrient separating baffle box (NSBB) storm-water treatment device treating runoff from a 4.3 ha (10.6 acre) ...

Abstract: Timber frame connections commonly use mortise and tenon connections secured by wooden pegs. The calculation of peg connection strength depends upon the joint dimensions, material properties of the mortise and tenon, and ...

Abstract: 7Q10 streamflow estimates used to support modeling and data analysis under the Clean Water Act national pollution discharge elimination system and total maximum daily load programs can have direct environmental and economic ...

Abstract: Planning is an integral part of water resources development and management. Whether or not particular plans or programs are eventually implemented, the planning process itself forces us to think about what we are or should ...