How the changing passive microwave observing system challenges the development of water cycle climate data records

Jason B Roberts, NASA Marshall Space Flight Center, Huntsville, AL, United States, Wesley K Berg, Colorado State University, Fort Collins, CO, United States, Clay B Blankenship, USRA, Huntsville, AL, United States and Carol Anne Clayson, Woods Hole Oceanographic Institution, Physical Oceanography, Woods Hole, MA, United States