airsis_loadLatest: Load most recent AIRSIS monitoring data

In AirMonitor: Air Quality Data Analysis

Load most recent AIRSIS monitoring data

Description

Loads pre-generated .rda files containing the most recent AIRSIS data.

If archiveDataDir is defined, data will be loaded from this local archive. Otherwise, data will be loaded from the monitoring data repository maintained by the USFS AirFire team.

The files loaded by this function are updated multiple times an hour and contain data for the previous 10 days.

For daily updates covering the most recent 45 days, use airsis_loadDaily().

For data extended more than 45 days into the past, use airsis_loadAnnual().

Usage

airsis_loadLatest(
  archiveBaseUrl = paste0("https://airfire-data-exports.s3.us-west-2.amazonaws.com/",
    "monitoring/v2"),
  archiveBaseDir = NULL,
  QC_negativeValues = c("zero", "na", "ignore"),
  QC_removeSuspectData = TRUE
)

Arguments

archiveBaseUrl	Base URL for monitoring v2 data files.
archiveBaseDir	Local base directory for monitoring v2 data files.
QC_negativeValues	Type of QC to apply to negative values.
QC_removeSuspectData	Removes monitors determined to be misbehaving.

Value

A mts_monitor object with AIRSIS data. (A list with meta and data dataframes.)

Note

Some older AIRSIS timeseries contain only values of 0, 1000, 2000, 3000, ... ug/m3. Data from these deployments pass instrument-level QC checks but these timeseries generally do not represent valid data and should be removed. With QC_removeSuspectData = TRUE (the default), data is checked and periods reporting only values of 0:10 * 1000 ug/m3 are invalidated.

Only those personally familiar with the individual instrument deployments should work with the "suspect" data.

See Also

airsis_loadAnnual

airsis_loadDaily

Examples

## Not run: 
library(AirMonitor)

# Fail gracefully if any resources are not available
try({

airsis_loadLatest()\ %>\
  monitor_filter(stateCode == "CA") \
  monitor_leaflet()

}, silent = FALSE)

## End(Not run)

AirMonitor documentation built on Sept. 27, 2024, 9:06 a.m.