Overview
--------

2017gb_17j = sum(gridded + emln)

gridded = (
  mrggrid_nobeis_norwc + beis + rwc
)

emln =  (
  emln_cmv_c1c2 + emln_cmv_c3 + emln_othpt
  + emln_pt_oilgas + emln_ptagfire + emln_ptegu
  + emln_ptfire + emln_ptfire_othna + emln_ptnonipm
)

Monthly all_total would be computed using mrggrid_nobeis_norwc + beis + rwc + all emln_* files

Annotated Directory
-------------------

```
    /work/EMIS/em_v8/2017platform/2017gb_17j/reports/custom/annual_gridded/
    |-- 2017gb_17j_mrggrid_nobeis_norwc_12US1_month_%m.ncf
    | # mrggrid_nobeis_norwc = (
    | #   afdust_adj + airports + ag + nonpt + nonroad + np_oilgas + ocean_cl2
    | #   + othafdust_adj + othar + othptdust_adj + onroad + onroad_ca_adj
    | #   + onroad_can + onroad_mex + rail
    | # )
    |-- 2017gb_17j_afdust_adj_12US1_month_%m.ncf
    |-- 2017gb_17j_ag_12US1_month_%m.ncf
    |-- 2017gb_17j_airports_12US1_month_%m.ncf
    |-- 2017gb_17j_beis_12US1_month_%m.ncf
    |-- 2017gb_17j_emln_cmv_c1c2_12_12US1_month_%m.ncf
    |-- 2017gb_17j_emln_cmv_c3_12_12US1_month_%m.ncf
    |-- 2017gb_17j_emln_othpt_12US1_month_%m.ncf
    |-- 2017gb_17j_emln_pt_oilgas_12US1_month_%m.ncf
    |-- 2017gb_17j_emln_ptagfire_12US1_month_%m.ncf
    |-- 2017gb_17j_emln_ptegu_12US1_month_%m.ncf
    |-- 2017gb_17j_emln_ptfire_12US1_month_%m.ncf
    |-- 2017gb_17j_emln_ptfire_othna_12US1_month_%m.ncf
    |-- 2017gb_17j_emln_ptnonipm_12US1_month_%m.ncf
    |-- 2017gb_17j_nonpt_12US1_month_%m.ncf
    |-- 2017gb_17j_nonroad_12US1_month_%m.ncf
    |-- 2017gb_17j_np_oilgas_12US1_month_%m.ncf
    |-- 2017gb_17j_onroad_12US1_month_%m.ncf
    |-- 2017gb_17j_onroad_ca_adj_12US1_month_%m.ncf
    |-- 2017gb_17j_onroad_can_12US1_month_%m.ncf
    |-- 2017gb_17j_onroad_mex_12US1_month_%m.ncf
    |-- 2017gb_17j_othafdust_adj_12US1_month_%m.ncf
    |-- 2017gb_17j_othar_12US1_month_%m.ncf
    |-- 2017gb_17j_othptdust_adj_12US1_month_%m.ncf
    |-- 2017gb_17j_rail_12US1_month_%m.ncf
    `-- 2017gb_17j_rwc_12US1_month_%m.ncf
```