ClimGen version numbering

Ie. 2.23.03

The first number indicates a major update. For example, a new module or simulation model is added. A new version should be distributed to all users. Users should be aware of that there may be some changes in file formats, since some parameters may either be added or deleted.

The second number indicates a minor update ranging from 0-100. This number increase when some changes have been made especially the addition of parameters or something that will affect the user's display. Once a distribution disk has been made for a user, this number should be incremented and the third number set back to 0. All users would appreciate this update. Users should be aware of that there may be some changes in file formats, since some parameters may either be added or deleted.

The third number ranging from 0-100 indicates a minor update between generations of distribution disks. There will be no changes in file formats.

ClimGen revisions

2008 (Version 4)

4.04.17 -- Sept 15, 2008

• Monthly mean peak 1/2 hour rain value input grid not working.
• Generate storm events no enabling when and monthly values were 0.0.
• NCDC daily surface data import was sometimes not converting the precipitation units correctly. (I had apparently fixed this at some point.)

4.04.15a Mar 18, 2008

• The solar angle equations we are using were not set up for locations above the Artic circle. I have made adjustments to correct the trigonometric problems in these equations that were from another source. These adjustments should also fix any related problems with respect to Solar radiation estimation, but we have never had a location so far north (we originally intended ClimGen to be used for prepare weather data for agricultural simulations).

4.04.15 Jan 11, 2008

• There was a significant out of stack overflow/memory error that prevented version 4.04.14 from performing the site analysis.
• Added LARS-WG UED import utility.
• Site analysis now only opens the weather data file one time allowing for a little faster site analysis.

4.04.14 Jan 11, 2008

• Generation now outputs reference evapotranspiration.
• ET parameters added to Generate data.

2005-2007 (Version 4)

4.02 to 4.04.13 Jan 1, 2004 - Jun 16, 2006

The details of these versions were not recorded.

• UED spatial interpolation utility.
• More UED import/export utilities.
• UED Tabular Data Format conversion utility and TDF format editor.
• Command line operation mode option.
• Solar radiation estimation now an option with warning.

2004 (Version 4)

4.02.01 Jan 15, 2004

• Saturation vapor pressure is not calculated with respect to water or ice depending of freezing conditions. This was added in an attempt to improve relative humidity in freezing conditions.

4.02.00 Jan 7, 2004

• Fixed problem with generated data quality tracking when the base quality is invalid.
• Rearranged "Describe location" wizard.
• Added "EarthInfo Summary of the day" import wizard.

2000 (Version 3)

3.10.00 Oct 16, 2000

• Reworked interface
• ET estimation
• UED import/export utilities.

3.09.00 Aug 1, 2000

• Added ET generation (FAO Penman-Monteith and Hargraeves).

3.08.00 July 24, 2000

• Reworked aridity factor optimization
• Reworked VDP optimization
• Reworked Dew point optimization
• Now inputs UED or original .DAT files
• Now outputs UED or original .DAT files
• Now chooses longest period of continuous solar radiation, not the latest period.

3.07.00 June 20, 2000

• UED file generation.
• 30 minute storm event generation.
• New file I/O text/UED input.

1999 (Version 3)

3.06.00 Spt 3, 1999

• Can now parameterize from UED file.
• Can now output to UED file.
• UED output is now qualified.
• Improved file I/O speed for text files.

3.05.11 Aug 11, 1999

• Div 0 error when only one year of rel. humid. data input.

3.05.09 May 24, 1999

• Added estimation of max and min std temp for dry and wet.
• Climate classification (enumeration) was not saving.

3.05.08 May 15, 1999

• Estimating solar rad from minimal param mode was not working.
• CliGen parameter file import added.

3.05.07 Apr 16, 1999

• From Francesc Castellvi's work, separate quadratic splines for min temperature.

1998 (Version 3)

3.05.06 May 1, 1998

• Fixed a number of division by zero errors encountered occasionally during daily data anaysis.
• Now puts a constant monthly average for wind speed when generating or estimating data for years where some real data already exists. If no monthly averages are available, a constant annual value is output. (When generating data, daily values can be generated as before).
• Some additional translations.

3.05.04 Apr 1, 1998

• Restored estimation of Solar Radiation given only temperature data.
• Removed Maria Angels Alpha determination.
• Add fitting of dew point temperature relative humidity etc.
• Added generation of max and min dew point temperature.
• Restored generation of relative humidity.
• Add generation of wind speed.

3.05.03 Mar 9, 1998

• A message is now display when bad input records are encountered.
• Fixed problem with finding year of continuous solar radiation (replaced MAXINT with MAXYEAR constant) and gave a separate rad_last_year and temp_last_year).

3.05.02 Mar 3, 1998

• Removed relative humidity generation since this can not be estimated well.

1997 (Version 3)

3.05.01 Oct 13, 1997

• Now 32bit only.
• MatGen now built into the main program.
• No longer estimates solar radiation based on B parameters estimated from latitude.
• Now MatGen correlates over continuous years of temperature or continuous years of solar rad if 5 years or more of data are available.
• Fitting of Aridity, Clear sky and B param for solar rad is now only valid if more than 370 total days of the respective requisit data is available.

3.05.00 Jul 10,1997

• Added B parameter fitting
• Added aridity factor fitting
• No longer have summer/winter B for solar radiation paramters, these are now estimated automatically if not sufficient info for B parameter fitting.

3.04.00 Jul 9, 1997

• Was not loading an existing location file if one was selected from wizard.
• Added button for starting a new wizard.
• Added instruction box at start of wizard explaining file/directory selection.
• Looking for solar radiation data for matrices etc. was not working right .

3.03.00 May 27, 1997

• Climate class radios not deselecting
• std not being estimated causing precip and srad generation to be 0
• Was incorrectly using pivot_month for month in std estimations

3.02.00 May 24, 1997

New ClimGen Wizard mode

3.01.00 May 13, 1997

• Now uses CropSyst weather classes for VPD and Solar radiation computation.
• VPD generation reenabled
• Solar radiation residuals now match Excel version.
• Was overestimating precipitation because was incorrectly identifying some regions as having evenly distributed precipitation.

3.00.00 May 4, 1997

Second major release of windows beta version

• Reorganized user interface.

about 1995 (Version 2)

2.00.00 ???

First Distributed windows version.

Prior to 1994 (Version 1)

1.00.00 ???

Pascal version from Leonard