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<br />. <br /> <br />. <br /> <br />. <br /> <br />Curt's New File and Directory: D:\wpd\proj\gcip\!Qcip1999-785.rpt.wpd (WOlD ER785) <br />(ER785 = $1 OOklyr for 3 yrs = Si300k total budget) <br /> <br />FIRST ANNUAL REPORT to r\lOAAlOGP/GCIP <br />February 2, 1999 <br /> <br />Demonstration of Improved Operational Water Resources Management <br />Through Utilization of Better Snow Water Equivalent Information <br /> <br />by Arlin B. Super <br />Bureau of Reclamation <br />Denver Federal Center <br /> <br />Substantial progress was made during the first year olf this project. The Statement of Work for <br />Proposal No. GEWEX97-0045 listed the following goals for the first year of effort. <br /> <br />1. Access near real-time NEXRAD radar Level III reflectivity products from the Chanhassen, MN, <br />(KMPX) WSR-88D radar through a NIDS vendor. <br /> <br />2. Modify Reclamation's Snow Accumulation Algorithm (SAA) to use Level III reflectivities from <br />KMPX as input to the SAA. <br /> <br />3. Use the modified SAA to provide near real-time S'NE estimates with a stand alone computer <br />that ingests the Level III data, runs the SAA, displays visual outputs and provides numerical <br />outputs. <br /> <br />4. Develop software to display the SWE estimates for the past 1 and 3 hours, and since the <br />beginning of each snow storm, on the same computer used to run the SAA. <br /> <br />5. Develop the means to convert radar SWE estimates from polar coordinates into a gridded field <br />coordinate system specified by NOHRSC. <br /> <br />6. Develop the means to provide gridded fields of radalr-estimated SWE to NOHRSC in a timely <br />fashion. <br /> <br />7. Begin to use special snow gage and airborne SWE observations to better "calibrate" the SAA <br />for the GCIP LSA-NC and LSA-NW regions. <br /> <br />8. Provide an annual report describing accomplishments and findings. <br /> <br />Goals 1. through 6. have essentially been accomplished and some goals were significantly <br />exceeded. For example, it had originally been proposed to work only with the Chanhassen, MN, <br />radar during the first year of effort (Goal 1) and incorporate additional radars in future years. <br />However, it has proved practical to use near real-timl~ data from 5 NEXt generation weather <br />RADar (NEXRAD) units during the current 1998-99 wintl3r. Progress has also been made on Goal <br />7. as will be discussed, and this report meets Goal 8. <br /> <br />1 <br />