{ "_id": "6ad9f12cdd3792e773238372", "Package": "ET0MassModels", "Type": "Package", "Title": "Evapotranspiration Estimation Using Mass Transfer-Based Models", "Version": "1.0.0", "Authors@R": "c(\nperson(\"Ajay N.\", \"Satpute\", role = \"aut\"),\nperson(\"Samir\", \"Barman\", email = \"samir.igfri@gmail.com\",\nrole = c(\"aut\", \"cre\"),\ncomment = c(ORCID = \"0000-0001-8181-8346\")),\nperson(\"Amit Kumar\", \"Singh\", role = \"aut\"),\nperson(\"Avijit\", \"Ghosh\", role = \"aut\"),\nperson(\"Gaurendra\", \"Gupta\", role = \"aut\"))", "Description": "Provides functions to estimate daily reference\nevapotranspiration (ET0) using 10 mass transfer-based empirical\nmodels, with the Food and Agriculture Organization (FAO)\nPenman-Monteith method included as the standard reference for\nmodel comparison. Includes statistical evaluation metrics, such\nas Nash-Sutcliffe efficiency (NSE), root mean square error\n(RMSE), mean absolute error (MAE), and mean bias error (MBE),\nand visualization tools (scatter plots and Taylor diagrams).\nBased on Singh et al. (2026) .", "License": "GPL (>= 3)", "URL": "https://github.com/samirigfri/ET0MassModels", "BugReports": "https://github.com/samirigfri/ET0MassModels/issues", "Encoding": "UTF-8", "LazyData": "true", "RoxygenNote": "7.3.3", "Config/testthat/edition": "3", "VignetteBuilder": "knitr", "Repository": "https://samirigfri.r-universe.dev", "Date/Publication": "2026-10-11 09:59:11 UTC", "RemoteUrl": "https://github.com/samirigfri/et0massmodels", "RemoteRef": "HEAD", "RemoteSha": "b85591a4715d5d4cb5f16cf9781e36d145769aa9", "NeedsCompilation": "no", "Packaged": { "Date": "2026-10-22 10:53:09 UTC", "User": "root" }, "Author": "Ajay N. Satpute [aut],\nSamir Barman [aut, cre] (ORCID:\n),\nAmit Kumar Singh [aut],\nAvijit Ghosh [aut],\nGaurendra Gupta [aut]", "Maintainer": "Samir Barman ", "_user": "samirigfri", "_type": "src", "_file": "ET0MassModels_1.0.0.tar.gz", "_fileid": "https://r2.ropensci.org/7670e5e52ab3e98d1048b5f7b904f913281f90c46a2858a728c2cc59f8ace1cb", "_filesize": 530330, "_sha256": "7670e5e52ab3e98d1048b5f7b904f913281f90c46a2858a728c2cc59f8ace1cb", "_expires": "2027-01-30T11:19:06.000Z", "_created": "2026-10-22T10:53:09.000Z", "_published": "2026-10-22T11:19:08.021Z", "_upstream": "https://github.com/samirigfri/et0massmodels", "_status": "success", "_maintainer": { "name": "Samir Barman", "email": "samir.igfri@gmail.com", "login": "samirigfri", "description": "", "uuid": 326461953, "orcid": "0000-0001-8181-8346" }, "_jobs": [ { "job": 119783046837, "time": 102, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "12420990277" }, { "job": 119783046977, "time": 99, "config": "linux-release-x86_64", "r": "4.6.1", "check": "OK", "artifact": "12419299858" }, { "job": 119783046823, "time": 91, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "12421806307" }, { "job": 119783046721, "time": 90, "config": "macos-release-arm64", "r": "4.6.1", "check": "OK", "artifact": "12421751708" }, { "job": 119781712668, "time": 190, "config": "source", "r": "4.6.1", "check": "OK", "artifact": "12420276831" }, { "job": 119783046797, "time": 76, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "12419834009" }, { "job": 119783047035, "time": 73, "config": "windows-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "12420711742" }, { "job": 119783046996, "time": 68, "config": "windows-oldrel-x86_64", "r": "4.5.3", "check": "OK", "artifact": "12420791567" }, { "job": 119783046930, "time": 74, "config": "windows-release-x86_64", "r": "4.6.1", "check": "OK", "artifact": "12420447294" } ], "_buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766033655", "_commit": { "id": "b85591a4715d5d4cb5f16cf9781e36d145769aa9", "author": "Samir Barman ", "committer": "Samir Barman ", "message": "CRAN fixes: license, acronyms, rename T argument\n", "time": 1791712751 }, "_distro": "resolute", "_host": "GitHub-Actions", "_registered": true, "_dependencies": [ { "package": "R", "version": ">= 3.5.0", "role": "Depends" }, { "package": "graphics", "role": "Imports" }, { "package": "grDevices", "role": "Imports" }, { "package": "stats", "role": "Imports" }, { "package": "testthat", "version": ">= 3.0.0", "role": "Suggests" }, { "package": "knitr", "role": "Suggests" }, { "package": "rmarkdown", "role": "Suggests" } ], "_owner": "samirigfri", "_selfowned": true, "_usedby": 0, "_updates": [ { "week": "2026-37", "n": 1 }, { "week": "2026-41", "n": 1 } ], "_tags": [], "_stars": 0, "_contributors": [ { "user": "samirigfri", "count": 2, "uuid": 326461953 } ], "_userbio": { "uuid": 326461953, "type": "user", "name": "samirigfri", "followers": 0 }, "_downloads": { "count": 0, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/ET0MassModels" }, "_devurl": "https://github.com/samirigfri/et0massmodels", "_searchresults": 0, "_rbuild": "4.6.1", "_assets": [ "extra/citation.cff", "extra/citation.html", "extra/citation.json", "extra/citation.txt", "extra/contents.json", "extra/ET0MassModels.html", "extra/manual.pdf", "extra/NEWS.html", "extra/NEWS.txt", "extra/readme.html", "extra/readme.md" ], "_homeurl": "https://github.com/samirigfri/et0massmodels", "_realowner": "samirigfri", "_cranurl": true, "_releases": [ { "version": "1.0.0", "date": "2026-10-21" } ], "_exports": [ "actual_vapor_pressure", "calc_d", "calc_mae", "calc_mbe", "calc_mse", "calc_nrmse", "calc_nse", "calc_r", "calc_r2", "calc_rmse", "daylight_hours", "dew_point_temperature", "et0_albrecht", "et0_brockamp_wenner", "et0_dalton", "et0_fao_pm", "et0_mahringer", "et0_mass_all", "et0_meyer", "et0_penman", "et0_rohwer", "et0_romanenko", "et0_trabert", "et0_wmo", "evaluate_models", "extraterrestrial_radiation", "latent_heat", "net_radiation", "plot_annual_bar", "plot_monthly_comparison", "plot_scatter", "plot_taylor", "psychrometric_constant", "saturation_vapor_pressure", "slope_vapor_pressure", "solar_radiation" ], "_datasets": [ { "name": "jhansi_weather", "title": "Sample Meteorological Data from Jhansi, India", "object": "jhansi_weather", "class": [ "data.frame" ], "fields": [ "Date", "J", "Tmax", "Tmin", "RH_morning", "RH_evening", "SSH", "WS" ], "rows": 365, "table": true, "tojson": true } ], "_help": [ { "page": "ET0MassModels-package", "title": "ET0MassModels: Evapotranspiration Estimation Using Mass Transfer-Based Models", "topics": [ "ET0MassModels-package", "ET0MassModels" ] }, { "page": "actual_vapor_pressure", "title": "Actual Vapor Pressure", "topics": [ "actual_vapor_pressure" ] }, { "page": "calc_d", "title": "Willmott's Index of Agreement (d)", "topics": [ "calc_d" ] }, { "page": "calc_mae", "title": "Mean Absolute Error (MAE)", "topics": [ "calc_mae" ] }, { "page": "calc_mbe", "title": "Mean Bias Error (MBE)", "topics": [ "calc_mbe" ] }, { "page": "calc_mse", "title": "Mean Squared Error (MSE)", "topics": [ "calc_mse" ] }, { "page": "calc_nrmse", "title": "Normalized Root Mean Squared Error (NRMSE)", "topics": [ "calc_nrmse" ] }, { "page": "calc_nse", "title": "Nash-Sutcliffe Efficiency (NSE)", "topics": [ "calc_nse" ] }, { "page": "calc_r", "title": "Pearson Correlation Coefficient (r)", "topics": [ "calc_r" ] }, { "page": "calc_r2", "title": "Coefficient of Determination (R-squared)", "topics": [ "calc_r2" ] }, { "page": "calc_rmse", "title": "Root Mean Squared Error (RMSE)", "topics": [ "calc_rmse" ] }, { "page": "daylight_hours", "title": "Daylight Hours", "topics": [ "daylight_hours" ] }, { "page": "dew_point_temperature", "title": "Dew Point Temperature", "topics": [ "dew_point_temperature" ] }, { "page": "et0_albrecht", "title": "Albrecht ET0 Model", "concept": [ "mass transfer models" ], "topics": [ "et0_albrecht" ] }, { "page": "et0_brockamp_wenner", "title": "Brockamp-Wenner ET0 Model", "concept": [ "mass transfer models" ], "topics": [ "et0_brockamp_wenner" ] }, { "page": "et0_dalton", "title": "Dalton ET0 Model", "concept": [ "mass transfer models" ], "topics": [ "et0_dalton" ] }, { "page": "et0_fao_pm", "title": "FAO Penman-Monteith Reference Evapotranspiration", "topics": [ "et0_fao_pm" ] }, { "page": "et0_mahringer", "title": "Mahringer ET0 Model", "concept": [ "mass transfer models" ], "topics": [ "et0_mahringer" ] }, { "page": "et0_mass_all", "title": "Compute ET0 Using All 10 Mass Transfer-Based Models and FAO Penman-Monteith", "topics": [ "et0_mass_all" ] }, { "page": "et0_meyer", "title": "Meyer ET0 Model", "concept": [ "mass transfer models" ], "topics": [ "et0_meyer" ] }, { "page": "et0_penman", "title": "Penman Mass Transfer ET0 Model", "concept": [ "mass transfer models" ], "topics": [ "et0_penman" ] }, { "page": "et0_rohwer", "title": "Rohwer ET0 Model", "concept": [ "mass transfer models" ], "topics": [ "et0_rohwer" ] }, { "page": "et0_romanenko", "title": "Romanenko ET0 Model", "concept": [ "mass transfer models" ], "topics": [ "et0_romanenko" ] }, { "page": "et0_trabert", "title": "Trabert ET0 Model", "concept": [ "mass transfer models" ], "topics": [ "et0_trabert" ] }, { "page": "et0_wmo", "title": "WMO ET0 Model", "concept": [ "mass transfer models" ], "topics": [ "et0_wmo" ] }, { "page": "evaluate_models", "title": "Evaluate Multiple ET0 Models Against a Reference", "topics": [ "evaluate_models" ] }, { "page": "extraterrestrial_radiation", "title": "Extraterrestrial Radiation", "topics": [ "extraterrestrial_radiation" ] }, { "page": "jhansi_weather", "title": "Sample Meteorological Data from Jhansi, India", "topics": [ "jhansi_weather" ] }, { "page": "latent_heat", "title": "Latent Heat of Vaporization", "topics": [ "latent_heat" ] }, { "page": "mass_transfer_models", "title": "Mass Transfer-Based ET0 Models", "topics": [ "mass_transfer_models" ] }, { "page": "metrics", "title": "Statistical Evaluation Metrics for ET0 Models", "topics": [ "metrics" ] }, { "page": "net_radiation", "title": "Net Radiation", "topics": [ "net_radiation" ] }, { "page": "plot_annual_bar", "title": "Annual ET0 Bar Chart", "topics": [ "plot_annual_bar" ] }, { "page": "plot_monthly_comparison", "title": "Monthly Comparison Plot", "topics": [ "plot_monthly_comparison" ] }, { "page": "plot_scatter", "title": "Scatter Plot of Predicted vs Observed ET0", "topics": [ "plot_scatter" ] }, { "page": "plot_taylor", "title": "Taylor Diagram", "topics": [ "plot_taylor" ] }, { "page": "plots", "title": "Visualization Functions for ET0 Model Comparison", "topics": [ "plots" ] }, { "page": "psychrometric_constant", "title": "Psychrometric Constant", "topics": [ "psychrometric_constant" ] }, { "page": "saturation_vapor_pressure", "title": "Saturation Vapor Pressure", "topics": [ "saturation_vapor_pressure" ] }, { "page": "slope_vapor_pressure", "title": "Slope of Saturation Vapor Pressure Curve", "topics": [ "slope_vapor_pressure" ] }, { "page": "solar_radiation", "title": "Solar Radiation (Angstrom)", "topics": [ "solar_radiation" ] } ], "_readme": "https://github.com/samirigfri/et0massmodels/raw/HEAD/README.md", "_rundeps": [], "_vignettes": [ { "source": "introduction.Rmd", "filename": "introduction.html", "title": "Introduction to ET0MassModels", "engine": "knitr::rmarkdown", "headings": [ "Overview", "Mass Transfer-Based Models", "Quick Start", "Loading the Package and Data", "Computing ET0 for a Single Day", "Computing All 10 Mass Transfer-Based Models at Once", "Evaluating Model Performance Against FAO-PM", "Visualization", "Scatter Plot", "Taylor Diagram", "References" ], "created": "2026-09-08 13:20:50", "modified": "2026-09-08 13:20:50", "commits": 1 } ], "_score": 4, "_indexed": true, "_nocasepkg": "et0massmodels", "_universes": [ "samirigfri" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "1.0.0", "date": "2026-10-22T10:54:53.000Z", "distro": "resolute", "commit": "b85591a4715d5d4cb5f16cf9781e36d145769aa9", "fileid": "https://r2.ropensci.org/2d2fd281cfce0be8c07a5947c48a54ab783ece7f63fbbb662d69636443bc0a66", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766033655" }, { "r": "4.6.1", "os": "linux", "version": "1.0.0", "date": "2026-10-22T10:54:51.000Z", "distro": "resolute", "commit": "b85591a4715d5d4cb5f16cf9781e36d145769aa9", "fileid": "https://r2.ropensci.org/bb8224a1a6afc5dbcb3fda4e5d76008029a86ac7e947b01b11ec7f82fc8a3437", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766033655" }, { "r": "4.5.3", "os": "mac", "version": "1.0.0", "date": "2026-10-22T11:18:34.000Z", "commit": "b85591a4715d5d4cb5f16cf9781e36d145769aa9", "fileid": "https://r2.ropensci.org/e2fba941e9add18970252f00319908f6fe35a92ef7745e5e5e8bbdda005e7e88", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766033655" }, { "r": "4.6.1", "os": "mac", "version": "1.0.0", "date": "2026-10-22T11:17:17.000Z", "commit": "b85591a4715d5d4cb5f16cf9781e36d145769aa9", "fileid": "https://r2.ropensci.org/a7a40732cf121ad2de2632dfe4a167f8ccde97a26b524022963b24ef9e85360b", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766033655" }, { "r": "4.6.0", "os": "wasm", "version": "1.0.0", "date": "2026-10-22T10:54:41.000Z", "commit": "b85591a4715d5d4cb5f16cf9781e36d145769aa9", "fileid": "https://r2.ropensci.org/17e9ce096c904656f6c9584496ae6ed84467f51208c6a0b7659e968a8d5d546c", "status": "success", "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766033655" }, { "r": "4.7.0", "os": "win", "version": "1.0.0", "date": "2026-10-22T10:54:18.000Z", "commit": "b85591a4715d5d4cb5f16cf9781e36d145769aa9", "fileid": "https://r2.ropensci.org/adb05b72caf1e98f28783dfaa7c5755003747a26560b6a8df05838b50270fb37", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766033655" }, { "r": "4.5.3", "os": "win", "version": "1.0.0", "date": "2026-10-22T10:54:15.000Z", "commit": "b85591a4715d5d4cb5f16cf9781e36d145769aa9", "fileid": "https://r2.ropensci.org/714f3468737d15dcf53c1b02f150d2af137cc2164d0e9352ceb116e20fe6b16c", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766033655" }, { "r": "4.6.1", "os": "win", "version": "1.0.0", "date": "2026-10-22T10:54:23.000Z", "commit": "b85591a4715d5d4cb5f16cf9781e36d145769aa9", "fileid": "https://r2.ropensci.org/6430489fa299dea18147575ddc8e25b9777ce6e6bc46ac91c2e705b729e83cd9", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/samirigfri/actions/runs/39766033655" } ] }