format_weather          Format weather data into an an object suitable
                        for use in ascotraceR spore dispersal models
summarise_trace         Summarise a trace_asco output nested list as a
                        single data.frame object
tidy_trace              Tidy up a trace_asco output nested list
trace_asco              Simulates the spread of Ascochyta blight in a
                        chickpea field
