Hydrology Formulator vs Simplot Advisor

HYDROLOGY FORMULATOR is the ultimate pocket reference for hydrologists, civil engineers, environmental scientists, and students. Packed with 1,000+ formulas, calculators, and conversions, it covers everything from groundwater analysis to stormwater design — all in one powerful app. HYDROLOGY CALCULATORS Infiltration & Recharge — 17 Calculators - Porosity, Green-Ampt Infiltration, Horton Infiltration, Philip Infiltration, Holtan's Model, Hydraulic Conductivity, Groundwater Recharge, Mean Pore Velocity, Specific Discharge, Volumetric Water Content, and more Evaporation & Transpiration — 8 Calculators - Penman-Monteith ET0, Blaney-Criddle ET, Thornthwaite PET, Crop Evapotranspiration, Saturation Vapor Pressure, Evaporation Rate of Lake, Relative Humidity, Potential Evapotranspiration Open Channel Flow — 12 Calculators - Manning's Equation (SI & US), Chezy Equation, Froude Number, Hydraulic Radius, Hydraulic Jump, Critical Depth, Specific Energy, Reynolds Number, and more Pipe Flow — 7 Calculators - Darcy-Weisbach Equation, Hazen-Williams Velocity (SI & US), Reynolds Number, Water Hammer Pressure, Continuity Equation, Minor Head Loss Stormwater & Watershed — 9 Calculators - SCS Curve Number Runoff, SCS Peak Discharge, IDF Rainfall Intensity, Kirpich Time of Concentration, Gumbel Extreme Value, Detention Storage Volume, Composite Curve Number, and more Pumps & Water Supply — 7 Calculators - Total Dynamic Head, Water Horsepower, Brake Horsepower, NPSHa, Affinity Laws for Flow, Head, and Power Weirs & Orifices — 6 Calculators - Rectangular Weir (SI & US), V-Notch Weir, Broad-Crested Weir, Orifice Flow, Spillway Discharge Water Flow — 10 Calculators - Water Flow Rate, Velocity of Water, Volume of Water Flow, 90° V-Notch calculations, Pipe Total Diameter, and more Surface Runoff — 6 Calculators - Average Velocity, Runoff, Travel Time, Hourly Rate of Rainfall Groundwater — 7 Calculators - Darcy's Law, Thiem Equation, Cooper-Jacob Drawdown, Dupuit Well Flow, Radius of Influence, Storage Properties Soil Pollution — 5 Calculators - Groundwater Pore Velocity, Effective Diffusion, Hydrodynamic Dispersion, Aquifer Parameter, Variance of Pore Velocity River Pollution — 7 Calculators - River Oxygen Deficit, Critical Time & Distance for Oxygen Deficit, Re-Aeration Constants, Dissolved Oxygen, River Flow, Water Temperature Lake Pollution — 4 Calculators - Waste Entering, Equilibrium Concentration, Settling Loss Rate, Particle Deposition Rate Sediment Transport — 4 Calculators - Shields Parameter, Bed Shear Stress, Stokes' Law Settling Velocity, Meyer-Peter Müller Bedload Snow Hydrology — 2 Calculators - Snow Water Equivalent, Degree-Day Snowmelt Culvert Hydraulics — 2 Calculators - Culvert Headwater (Outlet Control), Culvert Outlet Control Head Loss Flood Routing - Muskingum Routing Water Balance - Water Balance Equation, Storage Continuity Plus: Area Formulas, Pollution Cleanup, and more CONVERSIONS & REFERENCE Hundreds of built-in conversions across 16 categories including: - Liquid Measures, Cubic Measures, Linear Measures, Square Measures - Flow Rates, Pressures, Horsepower, BTU, Watts, Power - Hydraulic Conversions, Sand-to-Volume, Ft-Lbs - 8 Temperature Scales (Celsius, Fahrenheit, Kelvin, Rankine, Réaumur, Newton, Delisle, Rømer) - Metric Conversions and Fraction Conversions KEY FEATURES - Save and review past calculations - Switch between US (Imperial) and Metric units - Clean, intuitive interface designed for field and office use - Premium upgrade unlocks Groundwater, Pollution, Sediment Transport, Snow Hydrology, Culvert Hydraulics, and Flood Routing calculators

Simplot Advisor provides crop advisors and growers with an innovative suite of precision agronomy and compliance tools. Seamless, real-time data syncing and full offline capabilities allow field-based users to remain informed and productive at all times. NOTE • Use of this app requires an Simplot Advisor user account with advanced access. • Continued use of GPS running in the background can dramatically decrease battery life. MOBILE DATA MANAGEMENT • Create and manage grower, farm, field and planting records and boundary maps • Full editing capabilities while disconnected in the field • Boundary mapping with external GPS integration and auto-smoothing capabilities • Quick and accurate manual mapping with polygon, circle and split drawing tools • Multiple map background imagery providers (Apple, Google, Bing, etc.) CLOUD SYNC • Real-time background cloud sync automatically keeps everyone updated • Data synced from the device in real-time as records are created while connected • Data generated while offline is queued and sent automatically once a connection is detected • Two-way sync keeps all mobile devices in sync within minutes of any change • Robust permissions model prevents syncing and viewing of unauthorized data FIELD SCOUTING • Create geo-referenced scouting observations and attach photos and notes • Record pest observations for disease, insects and weeds • Record additional observations for nutrient deficiencies, soil moisture, crop damage and more • Share observations via text message directly from the field • Synchronize observations in real time with your co-workers or customers FIELD SAMPLING • Offline GPS-enabled soil and plant sample collection • Grid, zone, target and freeform sampling modes for point and composite samples • Sample using targets generated from field imagery, logged data (planting, harvest, EM, etc.), soil samples and more • Request lab recommendations for your sampling job • Share sample information sheet directly from the field via text message, email and more IMAGERY / MAP OVERLAYS • Access in-season imagery for your fields • Easily view available image dates and switch between layers with a single tap • View map overlays for planting, application, harvest records and more when scouting or sampling fields • Utilize location information along with imagery and map overlays for powerful guided scouting • Access in-season imagery and map layers to validate sample event locations