The Multi-Year Reanalysis of Remotely Sensed Storms (MYRORSS) project uses the Multi-Radar Multi-Sensor (MRMS) framework to blend radars along with near storm environmental data to create a three-dimensional radar volume across the entire CONUS. Currently, MYRORSS has reprocessed the WSR-88D radar archive for 1998 through 2011. **March 2021 Update:** There are now two ways for the MYRORSS data is stored. MYRORSS_Data includes the original MYRORSS data, Azshear products, and additional Echo Top Products separated out. MYRORSS_Data_Reog includes all the SAME products organized differently. All 2D products including the Azshear and Additional Echo Top Products are stored in one tar file per date while the MergedReflectivityQC (3D Reflectivity radar volume) is separated. The MergedReflectivityQC product is the most storage intensive product of all the MYRORSS products so this additional reorganized data will allow easier access to the other products. ---------- ## MYRORSS_Data ## MYRORSS_Data includes the original MYRORSS data, Azshear products, and additional Echo Top products. **Original MYRORSS data includes:** - EchoTop_18 : Echo Top Heights for 18 dBZ, units: km - EchoTop_50 : Echo Top Heights for 50 dBZ, units: km - MergedLLShear : Due to reprocessing, these data are incorrect. Please see Azshear directory for correct data. - MergedMLShear : Due to reprocessing, these data are incorrect. Please see Azshear directory for correct data. - MergedReflectivityQC : This is the three-dimensional radar volume with vertical resolution of 0.25 km for 0.25 km - 3 km, 0.5 km for 3 km - 9km, 1 km for 9 km - 20km, units: dBZ. - MergedReflectivityQCComposite : This is the maximum reflectivity volume for the column from the three-dimensional grid in a flat field, units: dBZ. - MergerInputRadarsTable : These data are xml files and give information about the radars involved in the merger for the tilmestep. - MESH : Maximum Estimated Size of Hail, units: mm - Reflectivity_0C : Reflectivity at isotherm 0C, units: dBZ - Reflectivity_-10C : Reflectivity at isotherm -10C, units: dBZ - Reflectivity_-20C : Reflectivity at isotherm -20C, units: dBZ - ReflectivityAtLowestAltitude : Reflectivity at lowest altitude, units: dBZ - SHI : Severe hail index, units: J/m/s - VIL : Vertically integrated liquid, units: kg/m^2 NOTE MergedLLShear and MergedMLShear: Due to algorithm changes, MergedLLShear and MergedMLShear products are incorrect within the MYRORSS_orig archive. To access updated products, each year folder has a folder name “Azshear” with corrected data within a Zip archive file for each date. **Azshear data includes:** - MergedLLShear : Merged low-level azimuthal shear (0-3 km AGL), units: 1/s - MergedMLShear : Merged mid-level azimuthal shear (3-6 km AGL), units: 1/s - MergerInputRadarsTable_LLShear : These data are xml files and give information about the radars involved in the merger for the timestamp for the MergedLLShear product. - MergedInputRadarsTable_MLShear : These data are xml files and give information about the radars involved in the merged for the timestamp for the MergedMLShear product. **Additional Echo Top products include:** - EchoTop_40 : Echo Top Heights for 40 dBZ, units: km - H18_Above_0C : Height of 18 dBZ above the 0C isotherm, units: km - H40_Above_0C : Height of 40 dBZ above the 0C isotherm, units: km - H50_Above_0C : Height of 50 dBZ above the 0C isotherm, units: km Products within the original MYRORSS data and Additional Echo Top products have a horizontal resolution of 0.01x0.01 lat/lon degrees and the Azshear products have a horizontal resolution of 0.005x0.005 lat/lon degrees. Temporal resolution of all products is approximately 5 minutes. Each date covers a convective day, 12 UTC on the date up to 12 UTC the following calendar date. [Ex: 20110427 covers 20110427 12 UTC up to 20110428 115959 UTC.] ---------- ## MYRORSS_Reorg_Data ## All the products available here are the same as in MYRORSS_Data just reorganized for easier access/usage for users. All products within 2D Products and 3D Reflectivity Grid, except for the Azshear products (i.e. MergedMLShear and MergedLLShear) have a horizontal resolution of 0.01x0.01 lat/lon degree. The Azshear products have a horizontal resolution of 0.005x0.005 lat/lon degrees. Temporal resolution of all products is approximately 5 minutes. Each date covers a convective day, 12 UTC on the date up to 12 UTC the following calendar date. [Ex: 20110427 covers 20110427 12 UTC up to 20110428 115959 UTC.] **2D Products:** - EchoTop_18 : Echo Top Heights for 18 dBZ, units: km - EchoTop_50 : Echo Top Heights for 50 dBZ, units: km - MergedReflectivityQCComposite : This is the maximum reflectivity volume for the column from the three-dimensional grid in a flat field, units: dBZ. - MergerInputRadarsTable : These data are xml files and give information about the radars involved in the merger for the tilmestep. - MESH : Maximum Estimated Size of Hail, units: mm - Reflectivity_0C : Reflectivity at isotherm 0C, units: dBZ - Reflectivity_-10C : Reflectivity at isotherm -10C, units: dBZ - Reflectivity_-20C : Reflectivity at isotherm -20C, units: dBZ - ReflectivityAtLowestAltitude : Reflectivity at lowest altitude, units: dBZ - SHI : Severe hail index, units: J/m/s - VIL : Vertically integrated liquid, units: kg/m^2 - MergedLLShear : Merged low-level azimuthal shear (0-3 km AGL), units: 1/s - MergedMLShear : Merged mid-level azimuthal shear (3-6 km AGL), units: 1/s - MergerInputRadarsTable_LLShear : These data are xml files and give information about the radars involved in the merger for the timestamp for the MergedLLShear product. - MergedInputRadarsTable_MLShear : These data are xml files and give information about the radars involved in the merged for the timestamp for the MergedMLShear product. - EchoTop_40 : Echo Top Heights for 40 dBZ, units: km - H18_Above_0C : Height of 18 dBZ above the 0C isotherm, units: km - H40_Above_0C : Height of 40 dBZ above the 0C isotherm, units: km - H50_Above_0C : Height of 50 dBZ above the 0C isotherm, units: km **3D Reflectivity Grid:** - MergedReflectivityQC : This is the three-dimensional radar volume with vertical resolution of 0.25 km for 0.25 km - 3 km, 0.5 km for 3 km - 9km, 1 km for 9 km - 20km, units: dBZ. ---------- ## Missing MYRORSS Dates ## Due to missing Near Storm Environmental Data, the following dates are not in the MYRORSS database: - 19980613 - 19990116 - 19990127 - 19990829 - 19991001 - 20000101 - 20000504 - 20020417 - 20040106