The importance of degree soil saturation in geotechnical problems resulted inclusion unsaturated mechanics various applications for several decades. However, spite recent progress remotely sensed moisture measurement, community has not yet taken advantage these advances analysis soils. NASA launched its Soil Moisture Active Passive (SMAP) satellite 2015 with the aim providing surface and root z...

BACKGROUND Many biological variables sampled from human subjects show a diurnal pattern, which poses special demands on the techniques used to analyze such data. Furthermore, most biological variables belong to nonlinear dynamical systems, which may make linear statistical techniques less suitable to analyze their dynamics. The current study investigates the usefulness of two analysis technique...

Soil moisture is a critical hydrological variable that links the terrestrial water, energy and carbon cycles. Global and regional observations of soil moisture are needed to estimate the water and energy fluxes at the land surface, to quantify the net carbon flux in boreal landscapes, to enhance weather and climate forecast skill and to develop improved flood prediction and drought monitoring c...

Radio frequency interference (RFI) is a risk for microwave radiometers due to their requirement of very high sensitivity. The Soil Moisture Active Passive (SMAP) mission has an aggressive approach RFI detection and filtering using dedicated spaceflight hardware ground processing software. As more sensors push observe at larger bandwidths in unprotected or shared spectrum, continues be essential...

NASA’s Soil Moisture Active Passive (SMAP) mission only retrieved ~2.5 months of 3 km near surface soil moisture (NSSM) before its radar transmitter malfunctioned. NSSM remains an important area study, and multiple applications would benefit from data. With the goal creating a product, we developed algorithm to downscale SMAP brightness temperatures (TBs) using Cyclone Global Navigation Satelli...