A three-dimensional, variable-density solute-transport model (SUTRA) was developed to evaluate the effects of nine selected withdrawal/recharge scenarios on salinity of groundwater and discharge of freshwater to the nearshore environment of central Molokaʻi, Hawaiʻi. The model was constructed using water-level and salinity data available for the period from 1940 to 2012. Groundwater recharge for the model was estimated using a daily water budget for the period of interest. Inflow of groundwater at the model boundaries was estimated from an islandwide model based on a sharp-interface approach (SHARP). The island-wide model is included as part of this data release. The data release also includes the SUTRA and SHARP source codes and executable files used to run the simulations. The SHARP code was modified for input/output related to computing the boundary flows and the SUTRA code was modified to include simplified unsaturated zone properties in the subroutine UNSAT. This USGS data release contains all of the input and output files for the simulations described in the associated model documentation report (https://doi.org/10.3133/sir20195150).

Groundwater levels have declined since the 1940s in the Wailuku area of central Maui, Hawaiʻi, on the eastern flank of West Maui volcano, mainly in response to increased groundwater withdrawals. Available data since the 1980s also indicate a thinning of the freshwater lens and an increase in chloride concentrations of pumped water from production wells. These trends, combined with projected increases in demand for groundwater in central Maui, have led to concerns over groundwater availability and have highlighted a need to improve understanding of the hydrologic effects of proposed groundwater withdrawals in the Waiheʻe, ʻĪao, and Waikapū areas of central Maui. A three-dimensional, variable-density solute-transport model (SUTRA) was developed to evaluate the effects of seven selected withdrawal/recharge scenarios on water levels and salinity of groundwater in central Maui, Hawaiʻi. The model was constructed using water-level and salinity data available for the period from 1926 to 2012. Groundwater recharge for the model was estimated using a daily water budget for the period of interest. Inflow of groundwater at the model boundaries was estimated from an existing island-wide numerical groundwater-flow model (Izuka and others, 2021, available at https://doi.org/10.3133/sir20205126). The data release also includes the SUTRA source code and executable file used to run the simulations. The SUTRA code was modified to include a simplified representation of water-table storage (Gingerich, 2008, available at https://pubs.usgs.gov/sir/2008/5236/; Gingerich and Engott, 2012, available at https://pubs.usgs.gov/sir/2012/5010/). This USGS data release contains all of the input and output files for the simulations described in the associated model documentation report (https://doi.org/10.3133/sir20215113).

The datasets provided contain modelled daily streamflow, and storage volume data for several NSW river systems. These data were generated by simulating baseline river system models used to inform the development of Regional Water Strategies. The models were simulated for three different climate scenarios: instrumental climate (about 130 years), paleo-stochastic climate (about 10,000 years), and paleo-stochastic climate with climate projection based on NARCliM 1.0 (about 10,000 years). Each modelled output is published as a ZIP file which contains two pdf files (.pdf) and three time series data (.csv). For more information on the NSW regional water strategies program, please refer to the following website. https://www.dpie.nsw.gov.au/water/our-work/plans-and-strategies/regional-water-strategies The naming structure of the individual zip files is "Watercourse at Gauge name, followed by Gauge number". 1) Towamba River at New Buildings Bridge Gauge 220001_NARCliM 2) Rutherford Creek at Brown Mountain Gauge 219001_NARCliM 3) Bemboka River at Morans Crossing Gauge 219003_NARCliM 4) Georges Creek at Steeple Flat (Cochrane Dam) Gauge 219005_NARCliM 5) Tantawangalo Creek at Tantawangalo Mountain Gauge 219006_NARCliM 6) Nunnock River at Brown Mountain (Dam Site) Gauge 219008_NARCliM 7) Brogo River at North Brogo Gauge 219013_NARCliM 8) Double Creek near Brogo Gauge 219017_NARCliM 9) Sandy Creek at Mogilla Gauge 219020_NARCliM 10) Bemboka River at Bemboka Gauge 219021_NARCliM 11) Tantawangalo Creek at Candelo Dam Site Gauge 219022_NARCliM 12) Brogo River at Angledale Gauge 219025_NARCliM 13) Bega River at Warraguburra Gauge 219026_NARCliM 14) Brogo River at Brogo Dam (Storage) Gauge 219027_NARCliM 15) Bega River at Kanoona Gauge 219032_NARCliM 16) Candelo Creek at Greenmount Road (Yurammie No. 4) Gauge 219034_NARCliM Note: If you would like to ask a question, make any suggestions, or tell us how you are using this dataset, please visit the NSW Water Hub which has an online forum you can join.

The datasets provided contain modelled daily streamflow, and storage volume data for several NSW river systems. These data were generated by simulating baseline river system models used to inform the development of Regional Water Strategies. The models were simulated for three different climate scenarios: instrumental climate (about 130 years), paleo-stochastic climate (about 10,000 years), and paleo-stochastic climate with climate projection based on NARCliM 1.0 (about 10,000 years). Each modelled output is published as a ZIP file which contains two pdf files (.pdf) and three time series data (.csv). For more information on the NSW regional water strategies program, please refer to the following website. https://www.dpie.nsw.gov.au/water/our-work/plans-and-strategies/regional-water-strategies The naming structure of the individual zip files is "Watercourse at Gauge name, followed by Gauge number". 1) Oxley River at Eungella Gauge 201001_NARCliM.zip 2) Rous River at Boat Harbour No1 Gauge 201002_NARCliM.zip 3) Tweed River at Braeside Gauge 201003_NARCliM.zip 4) Rous River at Boat Harbour No3 Gauge 201005_NARCliM.zip 5) Oxley River at Tyalgum Gauge 201006_NARCliM.zip 6) Hopping Dick Creek at Limpinwood Gauge 201007_NARCliM.zip 7) Rous River at Chillingham Gauge 201008_NARCliM.zip 8) Rolands Creek at Uki Gauge 201009_NARCliM.zip 9) Byrrill Creek at Glen Warning Gauge 201010_NARCliM.zip 10) Doon Doon Creek at Lower Doon Doon Gauge 201011_NARCliM.zip 11) Cobaki Creek at Cobaki Gauge 201012_NARCliM.zip 12) Doon Doon Creek downstream Clarrie Hall Dam Gauge 201013_NARCliM.zip 13) Tweed River downstream Palmers Road Crossing Gauge 201015_NARCliM.zip 14) Tweed River at Uki Gauge 201900_NARCliM.zip Note: If you would like to ask a question, make any suggestions, or tell us how you are using this dataset, please visit the NSW Water Hub which has an online forum you can join.

The datasets provided contain modelled daily streamflow, and storage volume data for several NSW river systems. These data were generated by simulating baseline river system models used to inform the development of Regional Water Strategies. The models were simulated for three different climate scenarios: instrumental climate (about 130 years), paleo-stochastic climate (about 10,000 years), and paleo-stochastic climate with climate projection based on NARCliM 1.0 (about 10,000 years). Each modelled output is published as a ZIP file which contains two pdf files (.pdf) and three time series data (.csv). For more information on the NSW regional water strategies program, please refer to the following website. https://www.dpie.nsw.gov.au/water/our-work/plans-and-strategies/regional-water-strategies The naming structure of the individual zip files is "Watercourse at Gauge name, followed by Gauge number". 1) Bellinger River at Thora Gauge 205002_NARCliM.zip 2) Bellinger River at Boggy Creek Gauge 205005_NARCliM.zip 3) Woolgoolga Creek at Woolgoolga Gauge 205007_NARCliM.zip 4) Corindi Creek at Upper Corindi Gauge 205012_NARCliM.zip 5) Kalang River at Kooroowi_Scotchman No3_Gauge 205013_NARCliM.zip 6) Bellinger River at Fosters Gauge 205016_NARCliM.zip Note: If you would like to ask a question, make any suggestions, or tell us how you are using this dataset, please visit the NSW Water Hub which has an online forum you can join.

The USGS Shoreline Management Tool (SMT), An ArcMap Tool for Analyzing Water Depth, Inundated Area, Volume, and Selected Habitats was used to determine the spatial availability of different water depths (as potential habitat for different species) as a function of water level and other factors, based on topographic data. This tool generates depth grids, perimeter and volume calculations at select water depths. and provides outputs in a GIS and tabular format. This Project contains archived products for the project. These products may include SOPs/protocols, field datasets, summary reports, geospatial data, and other archived survey materials.

The datasets provided contain modelled daily streamflow, and storage volume data for several NSW river systems. These data were generated by simulating baseline river system models used to inform the development of Regional Water Strategies. The models were simulated for three different climate scenarios: instrumental climate (about 130 years), paleo-stochastic climate (about 10,000 years), and paleo-stochastic climate with climate projection based on NARCliM 1.0 (about 10,000 years). Each modelled output is published as a ZIP file which contains two pdf files (.pdf) and three time series data (.csv). Note: To access and download datasets for specific regions, such as the Lachlan river system, please navigate to the respective child assets beneath this parent asset. For more information on the NSW regional water strategies program, please refer to the following website. https://www.dpie.nsw.gov.au/water/our-work/plans-and-strategies/regional-water-strategies Note: If you would like to ask a question, make any suggestions, or tell us how you are using this dataset, please visit the NSW Water Hub which has an online forum you can join.

The datasets provided contain modelled daily streamflow, and storage volume data for several NSW river systems. These data were generated by simulating baseline river system models used to inform the development of Regional Water Strategies. The models were simulated for three different climate scenarios: instrumental climate (about 130 years), paleo-stochastic climate (about 10,000 years), and paleo-stochastic climate with climate projection based on NARCliM 1.0 (about 10,000 years). Each modelled output is published as a ZIP file which contains two pdf files (.pdf) and three time series data (.csv). For more information on the NSW regional water strategies program, please refer to the following website. https://www.dpie.nsw.gov.au/water/our-work/plans-and-strategies/regional-water-strategies The naming structure of the individual zip files is "Watercourse at Gauge name, followed by Gauge number". 1) Nymboida River at Nymboida Gauge 204001_NARCliM.zip 2) Clarence River at Tabulam Gauge 204002_NARCliM.zip 3) Clarence River at The Gorge Gauge 204003_NARCliM.zip 4) Mann River at Jackadgery Gauge 204004_NARCliM.zip 5) Nymboida River at Buccarumbi Gauge 204005_NARCliM.zip 6) Clarence River at Lilydale_Newbold Crossing_Gauge 204007_NARCliM.zip 7) Mann River at Mitchell Gauge 204014_NARCliM.zip 8) Boyd River at Broadmeadows Gauge 204015_NARCliM.zip 9) Orara River at Karangi Gauge 204025_NARCliM.zip 10) Henry River at Newton Boyd Gauge 204034_NARCliM.zip 11) Orara River at Bawden Bridge Gauge 204041_NARCliM.zip 12) Peacock Creek at Bonalbo Gauge 204043_NARCliM.zip 13) Gorge Creek at Bonalbo Gauge 204044_NARCliM.zip 14) Coombadjha Creek at Coombadjha Gauge 204048_NARCliM.zip 15) Duck Creek at Capeen Gauge 204049_NARCliM.zip 16) Clarence River at Paddys Flat Gauge 204051_NARCliM.zip 17) Washpool Creek at Lionsville Gauge 204054_NARCliM.zip 18) Dandahra Creek at Gibraltar Range Gauge 204056_NARCliM.zip 19) Bucca Creek at Central Bucca Gauge 204060_NARCliM.zip 20) Orara River at Orange Grove Gauge 204068_NARCliM.zip 21) Nymboida River downstream Nymboida Weir Gauge 204069_NARCliM.zip 22) Clarence River at Grafton Gauge 204400_NARCliM.zip 23) Clarence Rv at Mylneford Gauge 204460_NARCliM.zip 24) Clarence River at Baryulgil Gauge 204900_NARCliM.zip 25) Orara River at Glenreagh Gauge 204906_NARCliM.zip Note: If you would like to ask a question, make any suggestions, or tell us how you are using this dataset, please visit the NSW Water Hub which has an online forum you can join.

This data release contains inputs for and outputs from hydrologic simulations for the Hawai‘i (HI) domain using the Precipitation Runoff Modeling System (PRMS) version 5.2.1.1 and the USGS National Hydrologic Model infrastructure (NHM, Regan and others, 2018). Historical simulations using the Daymet Version 4 gridded estimates of daily weather parameters (Thornton and others, 2020) were produced for the period 1980–2021. These data document the PRMS climate input data files for these simulations. Input files for the simulations include the PRMS parameter file and control file. The main landing page provides additional information and data dictionaries (parameters_data_dictionary.csv and control_data_dictionary.csv) that describe the parameter and control file values. Daymet forcings include precipitation and minimum and maximum temperature at a daily time-step. Available USGS measured streamflow data are included for 196 USGS streamgage locations from 1980–2021 (U.S. Geological Survey, 2022). CONTENTS OF THIS CHILD PAGE: 1. Precip.day = daily total precipitation climate-by-hydrologic response unit (CBH) file 2. Tmax.day = maximum daily temperature CBH file 3. Tmin.day = minimum daily temperature CBH file. 4. sf_data = daily measured USGS streamflow data 5. PRMS Version 5.2.1.1 = PRMS executable 6. HI_precalibration.param = PRMS parameter file for the HI domain precalibration release 7. HI_precalibration.control = PRMS control file for the HI domain precalibration release 8. HI_byHRU.param = PRMS parameter file for the HI domain byHRU release 9. HI_byHRU.control = PRMS control file for the HI domain byHRU release 10. HI_byPOIobs.param = PRMS parameter file for the HI domain byPOIobs release 11. HI_byPOIobs.control = PRMS control file for the HI domain byPOIobs release 12. HI_NHM_PRMS.bat = batch file that can be edited to run the model.

A three-dimensional groundwater flow model, constructed in MODFLOW-NWT, was developed to evaluate the groundwater flow system of the Kitsap Peninsula, west-central Washington. A transient model was constructed to simulate groundwater flow for January 1985–December 2012 using annual stress periods for 1985–2004 and monthly stress periods for 2005–2012. The model was used to simulate six hydrologic scenarios, including simulations of a steady-state system, no-pumping and return flows, 15-percent increase in current withdrawals in all wells, 80-percent decrease in outdoor water to simulate effects of conservation efforts, 15-percent decrease in recharge from precipitation to simulate a drought, and particle tracking to determine flow paths. This data release contains the input and output files for the simulations described in the associated model documentation report (https://doi.org/10.3133/sir20165052).