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AERMET PROCESSING VERIFICATION REPORT -- KMOB (MOBILE REGIONAL AIRPORT)
Period 2021-2025   |   Generated 2026-07-26 17:16:55
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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      KMOB  MOBILE REGIONAL AIRPORT, AL
   ICAO / WBAN / USAF   KMOB / 13894 / 722230
   GHCNh station ID     USW00013894
   Latitude, longitude  30.6880 N, 88.2460 W
   Elevation            65.5 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           156 km WSW of KMOB

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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     30.688056, -88.246111  (NAD83)
   Surface moisture     Average;  Arid: N
   Continuous snow      N
   Non-airport sectors  1
   Sectors              2
      sector 1: 220.0 to  324.0 degrees
      sector 2: 324.0 to  220.0 degrees

   Monthly surface characteristics applied by AERMET:

      Month  Sector   Albedo   Bowen ratio   Roughness z0 (m)
      -----  ------   ------   -----------   ----------------
          1       1     0.16          0.74              0.083
          2       1     0.15          0.51              0.139
          3       1     0.15          0.51              0.139
          4       1     0.15          0.51              0.139
          5       1     0.15          0.48              0.180
          6       1     0.15          0.48              0.180
          7       1     0.15          0.48              0.180
          8       1     0.15          0.48              0.180
          9       1     0.15          0.48              0.180
         10       1     0.15          0.74              0.165
         11       1     0.15          0.74              0.165
         12       1     0.15          0.74              0.165
          1       2     0.16          0.74              0.020
          2       2     0.15          0.51              0.027
          3       2     0.15          0.51              0.027
          4       2     0.15          0.51              0.027
          5       2     0.15          0.48              0.032
          6       2     0.15          0.48              0.032
          7       2     0.15          0.48              0.032
          8       2     0.15          0.48              0.032
          9       2     0.15          0.48              0.032
         10       2     0.15          0.74              0.027
         11       2     0.15          0.74              0.027
         12       2     0.15          0.74              0.027

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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            68515
   Rejected, NCEI suspect/erroneous 137
   Rejected, METAR cross-check      1
   Full detail                      KMOB_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 8784 | 1-min ASOS hrs 8784
      Calms 51 | Variable winds 13 | Cloud subs 1 | Temp subs 0
      Errors 0 | Warnings 353
   Year 2022
      Upper air soundings 778 | Surface obs 8782 | 1-min ASOS hrs 8784
      Calms 35 | Variable winds 39 | Cloud subs 5 | Temp subs 4
      Errors 0 | Warnings 359
   Year 2023
      Upper air soundings 771 | Surface obs 8778 | 1-min ASOS hrs 8784
      Calms 284 | Variable winds 145 | Cloud subs 4 | Temp subs 3
      Errors 0 | Warnings 364
   Year 2024
      Upper air soundings 781 | Surface obs 8805 | 1-min ASOS hrs 8808
      Calms 298 | Variable winds 92 | Cloud subs 11 | Temp subs 4
      Errors 0 | Warnings 366
   Year 2025
      Upper air soundings 739 | Surface obs 8632 | 1-min ASOS hrs 8760
      Calms 314 | Variable winds 182 | Cloud subs 29 | Temp subs 27
      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   100.0%    99.3%   100.0%    99.9%      99.8%   PASS
      2022    99.7%    99.6%    98.2%    99.4%      99.2%   PASS
      2023    98.8%    96.0%    98.1%    98.0%      97.8%   PASS
      2024    99.1%    99.6%    98.1%    97.6%      98.6%   PASS
      2025    94.7%    98.9%    92.4%    95.7%      95.4%   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     15.2 m/s    -6.8 C    34.4 C           0                0
      2022     12.0 m/s    -6.8 C    38.2 C           0                0
      2023     11.6 m/s    -1.8 C    40.7 C           0                0
      2024     14.2 m/s    -7.2 C    37.2 C           0                0
      2025     12.6 m/s   -11.1 C    35.0 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         51            18        8742
      2022         35            68        8692
      2023        280           197        8563
      2024        296           123        8661
      2025        314           399        8361

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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
      --------------------   ---------   -----   --------------------------------
      KMOB2021.sfc                1.47    8784   952ee6776077277a78b3b2b3e69df346
      KMOB2021.pfl                0.57       -   8abdbe7f0b0a114f3d1a0309767b9117
      KMOB2021US.sfc              1.47    8784   5278f2c73389c08ec330304ba3e61de3
      KMOB2021US.pfl              0.57       -   8abdbe7f0b0a114f3d1a0309767b9117
      KMOB2022.sfc                1.47    8784   3ef77b691a8cd84d8289fd72359699e7
      KMOB2022.pfl                0.57       -   c3bed3f8283f07ba5111e26e398ee2fc
      KMOB2022US.sfc              1.47    8784   8bff8e5f4499119aeb4945680e81a27f
      KMOB2022US.pfl              0.57       -   c3bed3f8283f07ba5111e26e398ee2fc
      KMOB2023.sfc                1.47    8784   a1e00548207df8075895692d45bf22d3
      KMOB2023.pfl                0.57       -   4ebd73adb9cfdd2b74a229168ed64c9b
      KMOB2023US.sfc              1.47    8784   9915cbab24fed5c49e49208c66b20542
      KMOB2023US.pfl              0.57       -   4ebd73adb9cfdd2b74a229168ed64c9b
      KMOB2024.sfc                1.48    8808   f7b848bf0142f23fe322a87d8be739b5
      KMOB2024.pfl                0.57       -   bb6dfaf416dc43ddece805a90261a272
      KMOB2024US.sfc              1.48    8808   ca5884a0fe16b37ef9efed226428ddfe
      KMOB2024US.pfl              0.57       -   bb6dfaf416dc43ddece805a90261a272
      KMOB2025.sfc                1.47    8784   234a6a764a794372bb5e4bc73bdaea2d
      KMOB2025.pfl                0.57       -   ac52f04932c061abcd366cd691f51d06
      KMOB2025US.sfc              1.47    8784   973108d909d0d6599e60951ce06d0c0d
      KMOB2025US.pfl              0.57       -   ac52f04932c061abcd366cd691f51d06

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End of report -- KMOB 2021-2025
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