mt_subset {MODISTools}

Download MODIS Land Products subsets

Description

Download a MODIS Land Products Subset product for a given point location buffered with a given amount of kilometers left-right, top-bottom for a given location (provided as latitude and longitude values).

Usage

mt_subset(
  product,
  band,
  lat,
  lon,
  start = "2000-01-01",
  end = format(Sys.time(), "%Y-%m-%d"),
  km_lr = 0,
  km_ab = 0,
  site_id,
  network,
  site_name = "sitename",
  out_dir = tempdir(),
  internal = TRUE,
  progress = TRUE
)

Arguments

product

a valid MODIS product name

band

band or bands (as a character vector) to download

lat

latitude in decimal degrees

lon

longitude in decimal degrees

start

start date

end

end date

km_lr

km left-right to sample (rounded to the nearest integer)

km_ab

km above-below to sample (rounded to the nearest integer)

site_id

site id (overides lat / lon)

network

the network for which to generate the site list, when not provided the complete list is provided

site_name

arbitrary site name used in writing data to file (default = sitename)

out_dir

path where to store the data if writing to disk (default = tempdir())

internal

should the data be returned as an internal data structure TRUE or FALSE (default = TRUE)

progress

show download progress

Value

A data frame combining meta-data and actual data values.

See Also

mt_sites mt_dates mt_bands mt_products mt_batch_subset

Examples

# list all available MODIS Land Products Subsets products
# download data
subset <- mt_subset(product = "MOD11A2",
                        lat = 40,
                        lon = -110,
                        band = "LST_Day_1km",
                        start = "2004-01-01",
                        end = "2004-03-31",
                        progress = FALSE)
 head(subset)