no code implementations • 13 Dec 2022 • George Worrall, Jasmeet Judge
Net F1 scores across all crop progress stages increased by 8. 7% when trained on a combination of surveyed region and synthetic data, and overall performance was only 21% lower than when the NN was trained on surveyed data and applied in the US Midwest.
no code implementations • 24 Jun 2021 • George Worrall, Anand Rangarajan, Jasmeet Judge
Results from this study exhibit both the viability of NNs in crop growth stage estimation (CGSE) and the benefits of using domain knowledge.
no code implementations • 21 Jan 2016 • Subit Chakrabarti, Jasmeet Judge, Tara Bongiovanni, Anand Rangarajan, Sanjay Ranka
A novel algorithm is developed to downscale soil moisture (SM), obtained at satellite scales of 10-40 km by utilizing its temporal correlations to historical auxiliary data at finer scales.
no code implementations • 20 Jan 2016 • Subit Chakrabarti, Tara Bongiovanni, Jasmeet Judge, Anand Rangarajan, Sanjay Ranka
In this study, a machine learning algorithm is used for disaggregation of SMAP brightness temperatures (T$_{\textrm{B}}$) from 36km to 9km.
no code implementations • 30 Jan 2015 • Subit Chakrabarti, Jasmeet Judge, Anand Rangarajan, Sanjay Ranka
The KLD of the disaggregated estimates generated by the SRRM is at least four orders of magnitude lower than those for the PRI disaggregated estimates, while the computational time needed was reduced by three times.
no code implementations • 30 Jan 2015 • Subit Chakrabarti, Jasmeet Judge, Anand Rangarajan, Sanjay Ranka
A novel algorithm is proposed to downscale microwave brightness temperatures ($\mathrm{T_B}$), at scales of 10-40 km such as those from the Soil Moisture Active Passive mission to a resolution meaningful for hydrological and agricultural applications.