This repository includes the key scripts used by Hu et al. (2021) to associated floods reported from the NCEI Storm Events Database with mesoscale convective systems (MCSs) in the US. Please find more details about the three python-based scripts below.
- 1. Obtain_StormEvent_Episode_info.py
- 2. Obtain_StormEvent_Episode_MCS.py
- 3. Obtain_StormEvent_Episode_nonMCS.py
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This script collects the information (e.g. timing, location, duration) of each flood episode, which might consist of multiple flood events, as a preperation for the following analysis to be linked with MCS or non-MCS storms. Note that floods in April-August 2007-2017 are of our interest.
| File names | Description | |
|---|---|---|
| A | StormEvents_details-ftp_v1.0_dyyyy_c*.csv | details and descriptions of each Storm Event |
| B | StormEvents_locations-ftp_v1.0_dyyyy_c*.csv | locations of each Storm Event |
(*yyyy indicates each year. The Storm Event database can be downloaded from ftp://ftp.ncdc.noaa.gov/pub/data/swdi/stormevents/csvfiles/)
| File names | Description | |
|---|---|---|
| A | StormEvent_episodes_mmm_yyyy.csv | list of flood episodes in each month |
| B | StormEvent_episodes_floods_lat_mmm_yyyy.csv | latitudes of each flood event (columns) belonging to each flood episode (rows) |
| C | StormEvent_episodes_floods_lon_mmm_yyyy.csv | longitudes of each flood event (columns) belonging to each flood episode (rows) |
| D | StormEvent_episodes_floods_time1_mmm_yyyy.csv | starting times of each flood event (columns) belonging to each flood episode (rows) |
| E | StormEvent_episodes_floods_time2_mmm_yyyy.csv | ending times of each flood event (columns) belonging to each flood episode (rows) |
| F | StormEvent_episodes_floods_type_mmm_yyyy.csv | flood types of each flood event (columns) belonging to each flood episode (rows): 1->slow-rising flood, 2->flash flood |
| G | StormEvent_episodes_info_mmm_yyyy.csv | gather all the above information of flood episodes into one file |
(*mmm indicates different months from April to August, yyyy indicates different years from 2007-2017)
This script attributes flood episodes collected by the above "Obtain_StormEvent_Episode_info.py" script to MCS events from the high-resolution(4km) MCS dataset.
| File names | Description | |
|---|---|---|
| A | StormEvent_episodes_info_mmm_yyyy.csv | information of each flood episode (output from "Obtain_StormEvent_Episode_info.py") |
| B | StormEvent_episodes_mmm_yyyy.csv | list of flood episodes in each month (output from "Obtain_StormEvent_Episode_info.py") |
| C | StormEvent_episodes_floods_lat_mmm_yyyy.csv | latitudes of each flood event (columns) belonging to each flood episode (rows)(output from "Obtain_StormEvent_Episode_info.py") |
| D | StormEvent_episodes_floods_lon_mmm_yyyy.csv | longitudes of each flood event (columns) belonging to each flood episode (rows)(output from "Obtain_StormEvent_Episode_info.py") |
| E | MCS_track_ppyyyy.nc | MCS tracks and precipitation data processed from 4-km MCS dataset |
| F | MCS_track_list_yyyy.dat | list of MCS track IDs that matches the IDs in "MCS_track_ppyyyy.nc" files |
| G | MCS_datetime_all_list_yyyy.dat | list of timesteps within the lifetime of each MCS |
(* note that files E-F are not directly available for downloading from the ARM website, pre-processing might be necessary. Please contact us if help is needed.)
| File names | Description | |
|---|---|---|
| A | Episode_frequency_mmm_yyyy.nc | maps of flood episode frequency and MCS-related floods in each month |
| B | Episode_flags_mmm_yyyy.csv | list of flags for flood episodes indicating whether a flood is associated with MCS or not: first column 1->associated with MCS; 0-> not associated with MCS |
This script attribute flood episodes collected by the above "Obtain_StormEvent_Episode_info.py" script to non-MCS rainfall events.
| File names | Description | |
|---|---|---|
| A | Episode_flags_mmm_yyyy.csv | list of flags for flood episodes indicating whether a flood is associated with MCS or not (output from "Obtain_StormEvent_Episode_MCS.py") |
| B | StormEvent_episodes_info_mmm_yyyy.csv | information of each flood episode (output from "Obtain_StormEvent_Episode_info.py") |
| C | StormEvent_episodes_mmm_yyyy.csv | list of flood episodes in each month (output from "Obtain_StormEvent_Episode_info.py") |
| D | StormEvent_episodes_floods_lat_mmm_yyyy.csv | latitudes of each flood event (columns) belonging to each flood episode (rows)(output from "Obtain_StormEvent_Episode_info.py") |
| E | StormEvent_episodes_floods_lon_mmm_yyyy.csv | longitudes of each flood event (columns) belonging to each flood episode (rows)(output from "Obtain_StormEvent_Episode_info.py") |
| F | yyyy0101_yyyy1231/mcstrack_%Y%m%d_%H00.nc | 4-km MCS dataset |
| File names | Description | |
|---|---|---|
| A | Episode_frequency_mmm_yyyynonMCS.nc | maps of non-MCS-related flood episode frequency in each month |
| B | Episode_flags_mmm_yyyynonmcs.csv | list of flags for flood episodes indicating whether a flood is associated with non-MCS storms or not: second column 1->associated with non-MCS rainfall; 0-> not associated with non-MCS rainfall |
Huancui Hu: [email protected]