Arid-site technology development at the Los Alamos National Laboratory: model verification

The program goal for shallow land burial (SLB) Technology Development at the Los Alamos National Laboratory is to field test new disposal concepts and strategies for all aspects of arid SLB on an accelerated basis and on a reasonable scale. The major accomplishments during FY-1981 were the development of the Los Alamos Experimental Engineered Test Facility, the emplacement of the biointrusion barrier testing experiments, the design and emplacement of the moisture cycling experiments, the design and construction of the experiment clusters, and the planning for the experiments to be emplaced in these units. This paper will describe model verification. The purpose of this subtask is to provide the experimental facilities and experimental procedures to obtain the data necessary to validate and verify, on a field scale, models for unsaturated transport of water and radionuclides. In addition to providing this data base for model verification, a two-dimensional, two-phase unsaturated transport model developed at the Los Alamos National Laboratory will be field validated