==============================================================================
AERMET PROCESSING VERIFICATION REPORT -- KTUP (TUPELO REGIONAL AIRPORT)
Period 2021-2025   |   Generated 2026-07-26 17:20:15
==============================================================================

OVERALL RESULT: PROCESSED SUCCESSFULLY -- SOME QUARTERS BELOW THE EPA CRITERION

   Processing              PASS
      AERMET errors                    : 0
      Non-physical values in .sfc      : 0
   Data completeness       SEE NOTE
      Quarters meeting EPA 90% criterion: 19 of 20

   Note: 1 quarter(s) fall below the 90% criterion.  This reflects gaps in
   the source observation archive, not an error in processing.  Review those
   periods when selecting a station and period for a regulatory application and
   consider substitute years, consistent with Appendix W and regional guidance.

------------------------------------------------------------------------------
1. STATION
------------------------------------------------------------------------------
   Surface station      KTUP  TUPELO REGIONAL AIRPORT, MS
   ICAO / WBAN / USAF   KTUP / 93862 / 723320
   GHCNh station ID     USW00093862
   Latitude, longitude  34.2620 N, 88.7710 W
   Elevation            103.8 m MSL
   Wind reference ht    10.0 m   (AERMOD .sfc column 18)
   Temp reference ht    2.0 m   (AERMOD .sfc column 20)

   Upper air station    USM00072235  JACKSON/ALLEN C. THOMPSON FIE
   Latitude, longitude  32.3189 N, 90.0800 W
   Elevation            90.7 m MSL
   Separation           248 km SSW of KTUP

------------------------------------------------------------------------------
2. SOFTWARE AND INPUT DATA
------------------------------------------------------------------------------
   AERMET               26135
   AERMINUTE            26135
   AERSURFACE           26135
   Surface data         NCEI GHCNh hourly (replaces the discontinued ISHD)
   1-minute winds       NCEI ASOS 1-minute and 5-minute, hourly-averaged by
                        AERMINUTE and merged by AERMET
   Upper air            NCEI IGRA v2 radiosonde soundings

------------------------------------------------------------------------------
3. SURFACE CHARACTERISTICS (AERSURFACE)
------------------------------------------------------------------------------
   Land cover           NLCD 2021 (with impervious and canopy)
   Roughness method     ZORAD, 1000.0 m radius, monthly resolution
   Site coordinates     34.262222, -88.771389  (NAD83)
   Surface moisture     Average;  Arid: N
   Continuous snow      N
   Non-airport sectors  2
   Sectors              2
      sector 1:   0.0 to  180.0 degrees
      sector 2: 180.0 to  360.0 degrees

   Monthly surface characteristics applied by AERMET:

      Month  Sector   Albedo   Bowen ratio   Roughness z0 (m)
      -----  ------   ------   -----------   ----------------
          1       1     0.17          0.80              0.026
          2       1     0.17          0.80              0.026
          3       1     0.15          0.48              0.032
          4       1     0.15          0.48              0.032
          5       1     0.17          0.55              0.038
          6       1     0.17          0.55              0.038
          7       1     0.17          0.55              0.038
          8       1     0.17          0.55              0.038
          9       1     0.17          0.55              0.038
         10       1     0.17          0.80              0.033
         11       1     0.17          0.80              0.033
         12       1     0.17          0.80              0.026
          1       2     0.17          0.80              0.097
          2       2     0.17          0.80              0.097
          3       2     0.15          0.48              0.122
          4       2     0.15          0.48              0.122
          5       2     0.17          0.55              0.175
          6       2     0.17          0.55              0.175
          7       2     0.17          0.55              0.175
          8       2     0.17          0.55              0.175
          9       2     0.17          0.55              0.175
         10       2     0.17          0.80              0.157
         11       2     0.17          0.80              0.157
         12       2     0.17          0.80              0.097

------------------------------------------------------------------------------
4. SURFACE DATA QUALITY CONTROL
------------------------------------------------------------------------------
   NCEI flags each observation with a quality code that AERMET does not act
   on, so the GHCNh file is screened before processing.  Rejected values are
   blanked (treated as missing); no record is dropped and no value is altered.

   Observations screened            66873
   Rejected, NCEI suspect/erroneous 140
   Rejected, METAR cross-check      0
   Full detail                      KTUP_GHCNh_2021_2025_qc_log.txt

------------------------------------------------------------------------------
5. ANNUAL PROCESSING STATISTICS (from AERMET .RP2)
------------------------------------------------------------------------------
   Year 2021
      Upper air soundings 743 | Surface obs 8782 | 1-min ASOS hrs 8784
      Calms 193 | Variable winds 32 | Cloud subs 12 | Temp subs 2
      Errors 0 | Warnings 359
   Year 2022
      Upper air soundings 774 | Surface obs 8782 | 1-min ASOS hrs 8784
      Calms 114 | Variable winds 37 | Cloud subs 20 | Temp subs 6
      Errors 0 | Warnings 356
   Year 2023
      Upper air soundings 758 | Surface obs 8781 | 1-min ASOS hrs 8784
      Calms 288 | Variable winds 102 | Cloud subs 31 | Temp subs 3
      Errors 0 | Warnings 358
   Year 2024
      Upper air soundings 754 | Surface obs 8794 | 1-min ASOS hrs 8808
      Calms 527 | Variable winds 89 | Cloud subs 46 | Temp subs 16
      Errors 0 | Warnings 357
   Year 2025
      Upper air soundings 738 | Surface obs 8605 | 1-min ASOS hrs 8760
      Calms 913 | Variable winds 169 | Cloud subs 144 | Temp subs 43
      Errors 0 | Warnings 356

------------------------------------------------------------------------------
6. DATA COMPLETENESS
------------------------------------------------------------------------------
   EPA requires at least 90% valid data per calendar quarter.  The quarterly
   columns are the compliance test; the annual column is informational.

      Year       Q1       Q2       Q3       Q4     Annual   Result
      ----   ------   ------   ------   ------   --------   ------
      2021    99.9%    99.4%    99.0%    99.9%      99.5%   PASS
      2022   100.0%    98.9%    96.4%    99.9%      98.8%   PASS
      2023    99.6%    96.8%    97.6%    99.6%      98.4%   PASS
      2024    98.7%    99.0%    96.3%    97.0%      97.7%   PASS
      2025    94.5%    95.6%    88.2%    98.5%      94.2%   FAIL

------------------------------------------------------------------------------
7. PHYSICAL PLAUSIBILITY OF THE DELIVERED FILES
------------------------------------------------------------------------------
   Screening of the .sfc files as delivered.  Wind speeds above 25 m/s and
   temperatures outside -25 to +45 C are reported for review; a non-zero count
   does not by itself mean the data are wrong, but each should be explainable.

      Year   Max wind   Min temp   Max temp   ws>25 m/s   T out of range
      ----   --------   --------   --------   ---------   --------------
      2021     10.6 m/s   -10.6 C    36.1 C           0                0
      2022     11.9 m/s   -15.6 C    38.9 C           0                0
      2023     13.1 m/s    -3.9 C    38.2 C           0                0
      2024     12.1 m/s   -12.8 C    37.8 C           0                0
      2025     17.3 m/s   -12.8 C    36.7 C           0                0

------------------------------------------------------------------------------
8. CALMS AND MISSING DATA
------------------------------------------------------------------------------
   AERMOD excludes calm hours (wind speed below the 0.5 m/s threshold) and
   missing hours from the averaging period, and reports both in its own output.
   They are counted here so the modeller can anticipate them.

      Year   Calm hrs   Missing hrs   Valid hrs
      ----   --------   -----------   ---------
      2021        193            40        8720
      2022        114           108        8652
      2023        288           141        8619
      2024        525           198        8586
      2025        913           510        8250

------------------------------------------------------------------------------
9. OUTPUT FILES
------------------------------------------------------------------------------
   Files without the US suffix were processed WITHOUT the ADJ_U* option; files
   with the US suffix were processed with METHOD STABLEBL ADJ_U*.  Use one set
   or the other consistently -- do not mix them within a single AERMOD run.

      File                    Size (MB)   Hours   MD5
      --------------------   ---------   -----   --------------------------------
      KTUP2021.sfc                1.47    8784   c2217714922df047f879f9807353539f
      KTUP2021.pfl                0.57       -   3f45ffd994d4b89acff638595e48cfd1
      KTUP2021US.sfc              1.47    8784   daa0a91057986322b7409d2448f3d024
      KTUP2021US.pfl              0.57       -   3f45ffd994d4b89acff638595e48cfd1
      KTUP2022.sfc                1.47    8784   24886a1d00557b7b969887a97da0fbe9
      KTUP2022.pfl                0.57       -   4f8d55cc8fc992d01a6e032165afa9c5
      KTUP2022US.sfc              1.47    8784   21ed8d98f3769ef95f12a482f7fe1f82
      KTUP2022US.pfl              0.57       -   4f8d55cc8fc992d01a6e032165afa9c5
      KTUP2023.sfc                1.47    8784   7fdff05e04de66085fa5339131903973
      KTUP2023.pfl                0.57       -   2decf348e5a87a6b55646e69df7ec063
      KTUP2023US.sfc              1.47    8784   4187fec8319e3dcf022f47dd18dbc6b4
      KTUP2023US.pfl              0.57       -   2decf348e5a87a6b55646e69df7ec063
      KTUP2024.sfc                1.48    8808   51fd6981264af99b043f87c8cccf039b
      KTUP2024.pfl                0.57       -   e65225f02be47efdd60bead2d7efd48b
      KTUP2024US.sfc              1.48    8808   fd3f4344e0621dca1a78464707849186
      KTUP2024US.pfl              0.57       -   e65225f02be47efdd60bead2d7efd48b
      KTUP2025.sfc                1.47    8784   bd9fd658facee2073c4f7b6b14878df2
      KTUP2025.pfl                0.57       -   0cb66ae1cc77be202c50875b580fa8b7
      KTUP2025US.sfc              1.47    8784   c955a036bdda0dd2a011bc3efefe13ab
      KTUP2025US.pfl              0.57       -   0cb66ae1cc77be202c50875b580fa8b7

==============================================================================
End of report -- KTUP 2021-2025
==============================================================================
