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Update find_met_files.r: forward simulation time bugfix #100

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Update find_met_files.r: forward simulation time bugfix #100

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12 changes: 11 additions & 1 deletion r/src/find_met_files.r
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@
find_met_files <- function(t_start, met_file_format, n_hours, met_path) {
require(dplyr)

n_hours_per_met_file <- 6
is_backward <- n_hours < 0

# TODO: implement n_hours_per_met_file to better determine file names at
Expand All @@ -27,7 +28,16 @@ find_met_files <- function(t_start, met_file_format, n_hours, met_path) {
range() %>%
(function(x) seq(x[1], x[2], by = 'hour')) %>%
strftime(tz = 'UTC', format = met_file_format)

# patch to retrieve correct met files for forward simulations
if(!is_backward){
request <- seq(
as.POSIXct(t_start, tz='UTC')-as.difftime(n_hours_per_met_file,units="hours")
, as.POSIXct(t_start, tz='UTC')+as.difftime(n_hours,units="hours")
, by = 60*60
) %>%
strftime(tz = 'UTC', format = met_file_format)
}#end if(n_hours>0)

available <- dir(met_path, full.names = T, recursive = T)
available <- available[!grepl('.lock', available)]

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