add chimere_create

[ibarraespinosa]

ncdf4::nc_open("EMIS.IDF5.01.C2H6.s.nc")
File EMIS.IDF5.01.C2H6.s.nc (NC_FORMAT_NETCDF4):

     8 variables (excluding dimension variables):
        float lon[west_east,south_north]   (Contiguous storage)  
            units: degrees_east
            long_name: Longitude
        float lat[west_east,south_north]   (Contiguous storage)  
            units: degrees_north
            long_name: Latitude
        float EMEP_levels[bottom_top]   (Contiguous storage)  
            units: meters
            long_name: Cut_off_heights
        char TZ_PER_GRID[nlentzone,west_east,south_north]   (Contiguous storage)  
            long_name: Time_zone_per_grid_in_full_text
        char SW_ZONES[nlentzone,nmaxzone]   (Contiguous storage)  
            long_name: List_of_timezone_with_summer_winter_time
        char SW_DATES[dlen,nmaxzone,nmaxdate]   (Contiguous storage)  
            units: UTC
            long_name: List_of_dates_for_summer_winter_shift
        int SW_SHIFT[nmaxzone,nmaxdate]   (Contiguous storage)  
            units: hours
            long_name: List_of_shifts
        float C2H6[west_east,south_north,bottom_top,type_day,Time]   (Chunking: [45,48,7,1,1])  
            units: molecule/cm2/s
            long_name: C2H6 Emission

     10 dimensions:
        Time  Size:24 (no dimvar)
        west_east  Size:45 (no dimvar)
        south_north  Size:48 (no dimvar)
        bottom_top  Size:7 (no dimvar)
        type_day  Size:7 (no dimvar)
        SpStrLen  Size:23 (no dimvar)
        nlentzone  Size:50 (no dimvar)
        nmaxdate  Size:62 (no dimvar)
        nmaxzone  Size:1 (no dimvar)
        dlen  Size:19 (no dimvar)

    19 global attributes:
        Title: CHIMERE emissions
        Sub-title: Hourly surface emission flux
        Chimere_type: EMISSIONS
        Generating_process: Generated by emiSURF2019
        Conventions: None
        Domain: IDF5
        Year: 2017
        Version: 2019
        Landuse_for_Reggriding: usgs
        Population_for_Residential_Sector: no
        Roadmap_for_Road_traffic_Sector: no
        Sector_information: Sectors by SNAP
        carb: 1
        poatype: nop
        Chemical_mechanism: melchior
        Emissions_database: CAMS_v4.2
        Use_geog: True
        Geogfile: /data/PLT8/pub/vmyrto/TestCaseEMISURF2020/INPUTS/geog/geo_em.d01.nc
        history: emiSurf_v2020

[ibarraespinosa]

• lon: matrix (lat x lon)
• lat: matrix (lat x lon)
• EMEP_levels: array (lat x lon x 7 levels)
• TZ_PER_GRID matrix (lat x lon). Time zone per pixel (eg America/Sao_Paulo, Europe/Paris, etc)
• SW_ZONES: "Europe/Paris "
• SW_DATES: matrix(1, 62). Different dates between "2000-03-26_01:00:00" and "2030-10-27_01:00:00"
• SW_SHiFT: vector length 62, 1, -1, 1, -1 ...
• ALK4: array dim (lat x lon x level x days x hours). eg: 45 48 7 7 24