The download_merra2() function accesses and downloads various
meteorological and atmospheric collections from NASA's Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA-2) model.
download_merra2(
collection = c("inst1_2d_asm_Nx", "inst1_2d_int_Nx", "inst1_2d_lfo_Nx",
"inst3_3d_asm_Np", "inst3_3d_aer_Nv", "inst3_3d_asm_Nv", "inst3_3d_chm_Nv",
"inst3_3d_gas_Nv", "inst3_2d_gas_Nx", "inst6_3d_ana_Np", "inst6_3d_ana_Nv",
"statD_2d_slv_Nx", "tavg1_2d_adg_Nx", "tavg1_2d_aer_Nx", "tavg1_2d_chm_Nx",
"tavg1_2d_csp_Nx", "tavg1_2d_flx_Nx", "tavg1_2d_int_Nx", "tavg1_2d_lfo_Nx",
"tavg1_2d_lnd_Nx", "tavg1_2d_ocn_Nx", "tavg1_2d_rad_Nx", "tavg1_2d_slv_Nx",
"tavg3_3d_mst_Ne", "tavg3_3d_trb_Ne", "tavg3_3d_nav_Ne", "tavg3_3d_cld_Np",
"tavg3_3d_mst_Np", "tavg3_3d_rad_Np", "tavg3_3d_tdt_Np", "tavg3_3d_trb_Np",
"tavg3_3d_udt_Np", "tavg3_3d_odt_Np", "tavg3_3d_qdt_Np", "tavg3_3d_asm_Nv",
"tavg3_3d_cld_Nv", "tavg3_3d_mst_Nv", "tavg3_3d_rad_Nv", "tavg3_2d_glc_Nx"),
date = c("2018-01-01", "2018-01-01"),
directory_to_save = NULL,
acknowledgement = FALSE,
download = FALSE,
remove_command = FALSE,
hash = FALSE
)For hash = FALSE, NULL
For hash = TRUE, an rlang::hash_file character.
netCDF (.nc4) files will be stored in a
collection-specific folder within directory_to_save.
character(1). MERRA-2 data collection file name.
character(1 or 2). length of 10. Date or start/end dates for downloading data.
Format "YYYY-MM-DD" (ex. January 1, 2018 = "2018-01-01").
character(1). Directory to save data.
logical(1). By setting TRUE the
user acknowledges that the data downloaded using this function may be very
large and use lots of machine storage and memory.
logical(1). FALSE will generate a *.txt file
containing all download commands. By setting TRUE the function
will download all of the requested data files.
logical(1).
Remove (TRUE) or keep (FALSE).
logical(1). By setting TRUE the function will return
an rlang::hash_file() hash character corresponding to the
downloaded files. Default is FALSE.
the text file containing download commands.
Mitchell Manware, Insang Song
data_gmao_merra-inst1_2d_asm_Nxamadeus
data_gmao_merra-inst1_2d_int_Nxamadeus
data_gmao_merra-inst1_2d_lfo_Nxamadeus
data_gmao_merra-inst3_3d_asm_Npamadeus
data_gmao_merra-inst3_3d_aer_Nvamadeus
data_gmao_merra-inst3_3d_asm_Nvamadeus
data_gmao_merra-inst3_3d_chm_Nvamadeus
data_gmao_merra-inst3_3d_gas_Nvamadeus
data_gmao_merra-inst3_2d_gas_Nxamadeus
data_gmao_merra-inst6_3d_ana_Npamadeus
data_gmao_merra-inst6_3d_ana_Nvamadeus
data_gmao_merra-statD_2d_slv_Nx_mamadeus
data_gmao_merra-statD_2d_slv_Nx_damadeus
data_gmao_merra-tavg1_2d_adg_Nxamadeus
data_gmao_merra-tavg1_2d_aer_Nxamadeus
data_gmao_merra-tavg1_2d_chm_Nxamadeus
data_gmao_merra-tavg1_2d_csp_Nxamadeus
data_gmao_merra-tavg1_2d_flx_Nxamadeus
data_gmao_merra-tavg1_2d_int_Nxamadeus
pawson_merra-2_2020amadeus
data_gmao_merra-tavg1_2d_lnd_Nxamadeus
data_gmao_merra-tavg1_2d_ocn_Nxamadeus
data_gmao_merra-tavg1_2d_rad_Nxamadeus
data_gmao_merra-tavg1_2d_slv_Nxamadeus
data_gmao_merra-tavg3_3d_mst_Neamadeus
data_gmao_merra-tavg3_3d_trb_Neamadeus
data_gmao_merra-tavg3_3d_nav_Neamadeus
data_gmao_merra-tavg3_3d_cld_Npamadeus
data_gmao_merra-tavg3_3d_mst_Npamadeus
data_gmao_merra-tavg3_3d_rad_Npamadeus
data_gmao_merra-tavg3_3d_tdt_Npamadeus
data_gmao_merra-tavg3_3d_trb_Npamadeus
data_gmao_merra-tavg3_3d_udt_Npamadeus
data_gmao_merra-tavg3_3d_odt_Npamadeus
data_gmao_merra-tavg3_3d_qdt_Npamadeus
data_gmao_merra-tavg3_3d_asm_Nvamadeus
data_gmao_merra-tavg3_3d_cld_Nvamadeus
data_gmao_merra-tavg3_3d_mst_Nvamadeus
data_gmao_merra-tavg3_3d_rad_Nvamadeus
data_gmao_merra-tavg3_2d_glc_Nxamadeus
data_gmao_merra-instM_2d_asm_Nxamadeus
data_gmao_merra-instM_2d_int_Nxamadeus
data_gmao_merra-instM_2d_lfo_Nxamadeus
data_gmao_merra-instM_2d_gas_Nxamadeus
data_gmao_merra-instM_3d_asm_Npamadeus
data_gmao_merra-instM_3d_ana_Npamadeus
data_gmao_merra-tavgM_2d_adg_Nxamadeus
data_gmao_merra-tavgM_2d_aer_Nxamadeus
data_gmao_merra-tavgM_2d_chm_Nxamadeus
data_gmao_merra-tavgM_2d_csp_Nxamadeus
data_gmao_merra-tavgM_2d_flx_Nxamadeus
data_gmao_merra-tavgM_2d_int_Nxamadeus
data_gmao_merra-tavgM_2d_lfo_Nxamadeus
data_gmao_merra-tavgM_2d_lnd_Nxamadeus
data_gmao_merra-tavgM_2d_ocn_Nxamadeus
data_gmao_merra-tavgM_2d_rad_Nxamadeus
data_gmao_merra-tavgM_2d_slv_Nxamadeus
data_gmao_merra-tavgM_2d_glc_Nxamadeus
data_gmao_merra-tavgM_3d_cld_Npamadeus
data_gmao_merra-tavgM_3d_mst_Npamadeus
data_gmao_merra-tavgM_3d_rad_Npamadeus
data_gmao_merra-tavgM_3d_tdt_Npamadeus
data_gmao_merra-tavgM_3d_trb_Npamadeus
data_gmao_merra-tavgM_3d_udt_Npamadeus
data_gmao_merra-tavgM_3d_odt_Npamadeus
data_gmao_merra-tavgM_3d_qdt_Npamadeus
data_gmao_merra-const_2d_asm_Nxamadeus
data_gmao_merra-instU_2d_asm_Nxamadeus
data_gmao_merra-instU_2d_int_Nxamadeus
data_gmao_merra-instU_2d_lfo_Nxamadeus
data_gmao_merra-instU_2d_gas_Nxamadeus
data_gmao_merra-instU_3d_asm_Npamadeus
data_gmao_merra-instU_3d_ana_Npamadeus
data_gmao_merra-tavgU_2d_adg_Nxamadeus
data_gmao_merra-tavgU_2d_aer_Nxamadeus
data_gmao_merra-tavgU_2d_chm_Nxamadeus
data_gmao_merra-tavgU_2d_csp_Nxamadeus
data_gmao_merra-tavgU_2d_flx_Nxamadeus
data_gmao_merra-tavgU_2d_int_Nxamadeus
data_gmao_merra-tavgU_2d_lfo_Nxamadeus
data_gmao_merra-tavgU_2d_lnd_Nxamadeus
data_gmao_merra-tavgU_2d_ocn_Nxamadeus
data_gmao_merra-tavgU_2d_rad_Nxamadeus
data_gmao_merra-tavgU_2d_slv_Nxamadeus
data_gmao_merra-tavgU_2d_glc_Nxamadeus
data_gmao_merra-tavgU_3d_cld_Npamadeus
data_gmao_merra-tavgU_3d_mst_Npamadeus
data_gmao_merra-tavgU_3d_rad_Npamadeus
data_gmao_merra-tavgU_3d_tdt_Npamadeus
data_gmao_merra-tavgU_3d_trb_Npamadeus
data_gmao_merra-tavgU_3d_udt_Npamadeus
data_gmao_merra-tavgU_3d_odt_Npamadeus
data_gmao_merra-tavgU_3d_qdt_Npamadeus
if (FALSE) {
download_merra2(
collection = "inst1_2d_int_Nx",
date = "2024-01-01",
directory_to_save = tempdir(),
acknowledgement = TRUE,
download = FALSE, # NOTE: download skipped for examples,
remove_command = TRUE,
)
}
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