https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:42036 Wed 17 Aug 2022 11:59:14 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:24998 90% of inundated sites along altimeter ground tracks and correctly selected waveforms reflected from water surfaces.]]> Sat 24 Mar 2018 07:09:53 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:43599 3 /m ³ target accuracy, limiting its applicability. Consequently, a longer wavelength radiometer is being explored as a potential solution for measuring soil moisture in a deeper surface layer of soil and under denser vegetation. It is expected that P-band ( wavelength of 40 cm and frequency of 750 MHz) could potentially provide soil moisture information for the top ~10-cm layer of soil, being one-tenth to one-quarter of the wavelength. In addition, P-band is expected to have higher soil moisture retrieval accuracy due to its reduced sensitivity to vegetation water content and surface roughness. To demonstrate the potential of P-band passive microwave soil moisture remote sensing, a short-term airborne field experiment was conducted over a center pivot irrigated farm at Cressy in Tasmania, Australia, in January 2017. First results showing a comparison of airborne P-band brightness temperature observations against airborne L-band brightness temperature observations and ground soil moisture measurements are presented. The P-band brightness temperature was found to have a similar but stronger response to soil moisture compared to L-band.]]> Mon 26 Sep 2022 15:19:44 AEST ]]>