SWAT Literature Database for Peer-Reviewed Journal Articles

Last updated: 3/5/2015

Welcome to the SWAT Journal Article Literature Database. This is an outgrowth of the “SWAT review article” that was published in Trans. ASABE in 2007, that can be accessed via the link in the i_SWAT paragraph at www.card.iastate.edu/environment/interactive_programs.aspx or via a link on the SWAT homepage (swat.tamu.edu). Credit goes to Dr. Raghavan Srinivasan of the Spatial Sciences Lab., Texas A&M University, College Station, TX for the initial database inspiration. Credit also goes to Mr. Curtis Balmer of the Center for Agricultural and Rural Development (CARD), Iowa State University for creating the on-line database, to Mr. Joshua Parcell, former CARD undergraduate worker, for the initial database development, and to Ms. Jessica Buman (current CARD undergraduate worker) for uploading the vast majority of information currently available in the database (Ms. Georgie Mitchell of the USDA-ARS Grasslands, Soil and Water Research Lab in Temple, TX and Mr. Mark Siemers of CARD have also helped upload some of the papers). Thanks are also expressed to several authors who have uploaded articles to the database. Please note that the first paper in the 2014 International SWAT Conference Proceedings provides a more in-depth description of the types of papers included, database structure, search options and other details (data provided in that paper were based on a total of 1,700 papers recorded in the database at that time). The proceedings and paper can be accessed at swat.tamu.edu/conferences/2014/.

The citation data included in the SWAT Literature Database is limited to “peer-reviewed journal articles,” with the recognition that the peer review process is much stronger and legitimate for some publishers/journals versus others. Some articles included in the database appear in journals maintained by publishers who have been identified as using questionable or unethical publishing practices (scholarlyoa.com/2015/01/02/bealls-list-of-predatory-publishers-2015/). Peer-reviewed book chapters and other articles are not included, even though some of those may be of equal or superior quality to some comparable journal articles (we can’t keep track of everything). Also, thousands of SWAT-related articles or reports exist in the so-called grey literature that encompasses government reports, conference papers, etc. (en.wikipedia.org/wiki/Grey_literature) including hundreds of SWAT-related studies in SWAT conference proceedings alone (swat.tamu.edu/conferences/). SWAT articles published in the realm of such grey literature are excluded from the database. Database users are encouraged to exercise discernment regarding the source of specific articles logged in the database and the usage of a given article in their own research.

Some of the papers do not describe applications or reviews of the standard SWAT model but do provide important contributions to the SWAT user community including papers that describe: (1) applications of modified SWAT models (e.g., SWIM, ESWAT, SWAT-G), (2) key predecessor models/approaches that contributed to components used in SWAT (e.g., EPIC, GLEAMS, SWRRB), or (3) discuss input data useful to SWAT modelers such as specific crop parameters or water quality issues of particular relevance. Subjective criteria are used at times in determining whether a paper should be included in the database.

The main information included in the database is the journal citation, model, abstract, watershed description, language, and broad, primary, or secondary application categories. The application categories were originally applied to the 200+ SWAT-related articles reviewed in Table 2 of the SWAT review article and are subjectively determined; i.e., many of the articles could be categorized three or more ways. These have been expanded since then in the database and reflect emerging trends, such as curve number modification or wetland application studies, and are attempt to help database users to refine their searches for articles of interest (and I continue to refine these). You may find these useful or you may find them annoying; either way you can also use the general search tool which allows you to search on any word or phrase of interest. The “models” designation is used to identify whether SWAT, a SWAT spin-off model, a predecessor model, or some combination of those is discussed in a specific paper; no attempt is made to identify other models. Also, note that “BMP” is used for the broad category only for papers that discuss use of SWAT for BMP assessments but don’t present SWAT results.

Other information included for some entries in the database are the calibration summary, validation summary, general comments, and keywords. The calibration summary, validation summary, and general comments were used in support of writing the SWAT review paper and are blank for the majority of the database entries. There are also two SWAT literature lists that are provided. One is ordered alphabetically while the other one is organized by model category. These lists update automatically every time a new entry is submitted to the literature database.

Please feel free to upload information about new SWAT journal articles that you have co-authored or know have not been input to the database yet. Those are reviewed first before being released to the database. Please also submit any comments or suggestions you have regarding the database using the “Contact Database Staff” option. We will try to quickly correct any errors, typos, etc. that anyone finds. We will also consider other requests but can’t promise for sure that we will be able to act on them.

Phil Gassman
(my webpage: www.card.iastate.edu/people/profile/?n=philip-w-gassman)