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AERMET PROCESSING VERIFICATION REPORT -- KPQL (TRENT LOTT INTL AIRPORT)
Period 2021-2025   |   Generated 2026-07-26 17:19:08
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OVERALL RESULT: PROCESSED SUCCESSFULLY -- ALL QUARTERS MEET THE EPA CRITERION

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

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1. STATION
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   Surface station      KPQL  TRENT LOTT INTL AIRPORT, MS
   ICAO / WBAN / USAF   KPQL / 53858 / 747688
   GHCNh station ID     USW00053858
   Latitude, longitude  30.4630 N, 88.5320 W
   Elevation            2.8 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    USM00072233  SLIDELL/MUN. LA
   Latitude, longitude  30.3369 N, 89.8250 W
   Elevation            9.9 m MSL
   Separation           125 km W of KPQL

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2. SOFTWARE AND INPUT DATA
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   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

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3. SURFACE CHARACTERISTICS (AERSURFACE)
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   Land cover           NLCD 2021 (with impervious and canopy)
   Roughness method     ZORAD, 1000.0 m radius, monthly resolution
   Site coordinates     30.463056, -88.531667  (NAD83)
   Surface moisture     Wet;  Arid: N
   Continuous snow      N
   Non-airport sectors  1
   Sectors              2
      sector 1: 166.0 to  346.0 degrees
      sector 2: 346.0 to  166.0 degrees

   Monthly surface characteristics applied by AERMET:

      Month  Sector   Albedo   Bowen ratio   Roughness z0 (m)
      -----  ------   ------   -----------   ----------------
          1       1     0.14          0.16              0.229
          2       1     0.14          0.15              0.290
          3       1     0.14          0.15              0.290
          4       1     0.14          0.15              0.290
          5       1     0.14          0.15              0.305
          6       1     0.14          0.15              0.305
          7       1     0.14          0.15              0.305
          8       1     0.14          0.15              0.305
          9       1     0.14          0.15              0.305
         10       1     0.14          0.16              0.292
         11       1     0.14          0.16              0.292
         12       1     0.14          0.16              0.292
          1       2     0.14          0.16              0.027
          2       2     0.14          0.15              0.037
          3       2     0.14          0.15              0.037
          4       2     0.14          0.15              0.037
          5       2     0.14          0.15              0.045
          6       2     0.14          0.15              0.045
          7       2     0.14          0.15              0.045
          8       2     0.14          0.15              0.045
          9       2     0.14          0.15              0.045
         10       2     0.14          0.16              0.037
         11       2     0.14          0.16              0.037
         12       2     0.14          0.16              0.037

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4. SURFACE DATA QUALITY CONTROL
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   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            66298
   Rejected, NCEI suspect/erroneous 226
   Rejected, METAR cross-check      0
   Full detail                      KPQL_GHCNh_2021_2025_qc_log.txt

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5. ANNUAL PROCESSING STATISTICS (from AERMET .RP2)
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   Year 2021
      Upper air soundings 747 | Surface obs 8782 | 1-min ASOS hrs 8784
      Calms 171 | Variable winds 26 | Cloud subs 10 | Temp subs 15
      Errors 0 | Warnings 354
   Year 2022
      Upper air soundings 778 | Surface obs 8782 | 1-min ASOS hrs 8784
      Calms 147 | Variable winds 26 | Cloud subs 17 | Temp subs 6
      Errors 0 | Warnings 360
   Year 2023
      Upper air soundings 771 | Surface obs 8782 | 1-min ASOS hrs 8784
      Calms 405 | Variable winds 182 | Cloud subs 18 | Temp subs 9
      Errors 0 | Warnings 365
   Year 2024
      Upper air soundings 781 | Surface obs 8782 | 1-min ASOS hrs 8808
      Calms 377 | Variable winds 80 | Cloud subs 30 | Temp subs 17
      Errors 0 | Warnings 367
   Year 2025
      Upper air soundings 739 | Surface obs 8602 | 1-min ASOS hrs 8760
      Calms 433 | Variable winds 22 | Cloud subs 58 | Temp subs 40
      Errors 0 | Warnings 369

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6. DATA COMPLETENESS
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   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    99.4%    99.4%    98.6%    99.6%      99.2%   PASS
      2022    99.8%    99.4%    99.8%    98.5%      99.4%   PASS
      2023    99.0%    93.6%    96.3%    99.9%      97.2%   PASS
      2024    99.7%    98.3%    97.7%    99.1%      98.7%   PASS
      2025    99.7%    99.9%    92.3%    99.2%      97.8%   PASS

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7. PHYSICAL PLAUSIBILITY OF THE DELIVERED FILES
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   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     10.8 m/s    -5.0 C    36.7 C           0                0
      2022     10.1 m/s    -6.1 C    39.0 C           0                0
      2023     15.2 m/s    -2.2 C    40.7 C           0                0
      2024     11.3 m/s    -6.8 C    37.8 C           0                0
      2025     10.8 m/s   -12.2 C    36.1 C           0                0

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8. CALMS AND MISSING DATA
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   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        171            66        8694
      2022        146            55        8705
      2023        405           245        8515
      2024        373           114        8670
      2025        433           196        8564

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9. OUTPUT FILES
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   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
      --------------------   ---------   -----   --------------------------------
      KPQL2021.sfc                1.47    8784   6bc3f5ae26c537ef577a66fa7b7d072a
      KPQL2021.pfl                0.57       -   c3c5f4ec91762ae83fbd619ba65c05d3
      KPQL2021US.sfc              1.47    8784   96fbe2d34663bfc03cd7a23f73f290b2
      KPQL2021US.pfl              0.57       -   c3c5f4ec91762ae83fbd619ba65c05d3
      KPQL2022.sfc                1.47    8784   28b1f23dc6b7a0dd4601878b853c8e5b
      KPQL2022.pfl                0.57       -   a32a3cb714b953f422b0d61432532e08
      KPQL2022US.sfc              1.47    8784   c2930ef85fcf9f62548c495b2284e1e1
      KPQL2022US.pfl              0.57       -   a32a3cb714b953f422b0d61432532e08
      KPQL2023.sfc                1.47    8784   ffc80947afce808e59d3905a284b91a5
      KPQL2023.pfl                0.57       -   f69eecd36439acdc115b4e97e2703720
      KPQL2023US.sfc              1.47    8784   6cc4bd53790be4c946fa1edebfd4a602
      KPQL2023US.pfl              0.57       -   f69eecd36439acdc115b4e97e2703720
      KPQL2024.sfc                1.48    8808   f503e5c2c2ec14a5cb0ec9bdff534c83
      KPQL2024.pfl                0.57       -   e237333c1fb789c24f085c07022597dc
      KPQL2024US.sfc              1.48    8808   5af3172dcadfd6b09588e688a05e5a56
      KPQL2024US.pfl              0.57       -   e237333c1fb789c24f085c07022597dc
      KPQL2025.sfc                1.47    8784   a104f89a31c54b4558037ac95d489c7b
      KPQL2025.pfl                0.57       -   b3e25620cbe0ac7f6586275f6d327b9d
      KPQL2025US.sfc              1.47    8784   bb753ea8b249f394c5612e3291d141c3
      KPQL2025US.pfl              0.57       -   b3e25620cbe0ac7f6586275f6d327b9d

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End of report -- KPQL 2021-2025
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