Satellite image processing, atmospheric radiative transfer, remote sensing algorithms, atmospheric physical processes. Principal component analysis and dimensional reduction of high-dimensional observational datasets. Physical and empirical estimation techniques, including optimal estimation; measurement theory. Principles of stereophotogrammetry.
Techniques Grant Petty Uses:
Ad hoc, heuristic, intuitive, experimental, and/or numerical simulation.
Grant Petty's Problem Solving Skills:
satellite image analysis
scientific programming (C, Fortran, Python)
commercial UAV/drone pilot
reviewer of journal articles and science proposals
Grant Petty's Problem Solving Experience:
I developed a novel unsupervised classification algorithm based on pairwise similarities among the members of a multidimensional data set.
In the era before terabyte-sized hard disk drives, I developed a C-language program for treating an open-ended collection of sequential magnetic tapes as a virtual random-access storage device.
I wrote a Python program for automating the creation and management of invoices for online book orders.
I built a 2.6m autonomous fixed-wing drone for making meteorological measurements.
I developed a new technique for estimating rainfall from satellite multifrequency microwave observations of the global atmosphere and published results showing that it performs significantly better than the then-standard algorithm.
I developed a theoretical concept for measuring the mass of falling precipitation particles using soft x-rays.
I started an independent textbook publishing business that currently ships well over 1,000 books per year, including two of my own titles and three titles by other authors.
I built and fly a manned ultralight airplane for use in meteorological research.
I published a paper presenting the first calculations of scattering of microwave energy from realistic aggregated snowflakes.
I developed a method for measuring above-surface winds by photogrammetrically tracking balloons with pro-sumer grade cameras.
As a graduate student, I wrote a 10,000+ line C custom program for interactive display and analysis of satellite microwave images.
For my Ph.D. dissertation, I developed a self-contained parametric model for the response of a particular satellite microwave radiometer to atmospheric state.