Groundwater
flow is a more complex
process than surface
runoff...To determine
groundwater flow,
one also needs to
know evapotranspiration
(water uptake from
plants and evaporation)
and groundwater aquifer
geology.
Groundwater
Flow & Solute Transport
Applets include: "...Non-reactive
and Reactive Diffusive
Transport Applets;
1D Non-reactive and
Reactive Solute Transport
Applets; Multidimensional
Non-reactive and Reactive
Solute Transport Applets;
2D Steady Flow in
Homogeneous Aquifers
with Particle Tracking
Applets; and 2D Steady
Flow in Heterogeneous
Aquifers with Particle
Tracking Applets..."
The
net margin per year
can be compared with
the initial capital
outlay to consider
the return on investment.
The result from this
calculator indicates
which systems are
worth more detailed
analysis.
Value
of an additional cfs
of water for Hydro
Power Generation;
Irrigation System
- Cost Analysis; Costs
for Big Gun Irrigation
System; Costs for
Center Pivot Irrigation
System; Costs for
Drip Irrigation System;
Costs for Gated Pipe
Irrigation System;
Cost Estimate of Pipeline
Projects; Estimating
the Cost of Irrigation
Water; Costs for Wheel
Line (Diesel) Irrigation
System; Costs for
Wheel Line (Electric)
Irrigation System.
Reducing
nonpoint source pollution
of surface water by
P from agricultural
cropland requires
management practices
that control both
the supply and transport
of soil.
The
simulation uses
the conceptual framework
of computational
science - application,
algorithm, and architecture..."
Cover Types Include:
"...Brush; Desert
Shrub; Dirt Road;
Farmsteads; Gravel
Road; Herbaceous;
Meadow; Oak Aspen;
Open Urban Space;
Parking Lots; Pasture;
Paved Street With
Curb; Paved Street
with Open Ditch;
Pinyon Juniper;
Residential; Sagebrush;
Woods; & Woods with
Grass.
The
two main things
that control runoff
is the land cover
and the soil. Runoff
and infiltration
do a balancing act..."
Includes: "...Amount
of Rain; Land Cover
(Forest, Pasture,
Row Crops etc);
Soil Infiltration
Rate (Sand, Silt,
Clay); Soil Moisture.
Short-Term
Impact Assessments:
Includes four different
tools: SedSpec,
Rational Method,
TR-55 & Database
Frontend..." "...Long-Term
Impact Assessments:
This tool uses the
land use and a soil
characteristic from
the user along with
thirty years of
precipitation data
to determine the
average impact that
a particular land
use change or set
of changes..." Includes:
"...By State, By
County, Area in
(Acres, Hectares,
Km2,
Mi2,
Land Use (Commercial,
Industrial, Residential,
Open Spaces, Parking/Paved
Spaces, Water/Wetlands,
Grass/Pasture, Agriculture,
Forest & Custom
Land Use), & Hydrologic
Soil Groups.
The RTW Corrosivity
Index Calculator calculates
two useful corrosion
indices: the Langelier
Saturation Index,
and the Ryznar Stability
Index. Each can be
independently used
to determine the corrosive
nature of a given
influent water.
In order to do this
calculation, you must
first have some accurate
data...You will need
the following data
in order to do the
calculation; 1. Average
Daily Flow in terms
of MGD.
Water/Wastewater
Calculators include:
"...Temperature; GPM
to MGD; Loadings Calculation;
Lbs of Chemical/Gal
of Solution; Tank
Volume Calculations;
MG/L (PPM) to Lbs
per Day; Removal Efficiency;
GPD to ML per Minute;
F /M Ratio Calculator;
Geometric Mean Calculator;
Fecal Coliform Reporting;
Wastewater Sludge
(biosolids) Production
Estimating Calculator;
TNTC Calculation;
Nitrification Calculator,
Alkalinity Calculator.
Examples from over
"16" Water/Wastewater
Calculators include
This enterprise budget
is developed as a
tool that Georgia
fishermen engaged
in shrimp trawling
will be able to use
for the following
reasons: (1) To provide
a snapshot of the
operations' financial
performance; (2) To
identify problem areas
that need to be addressed
in order to maximise
the returns for the
business.
Opens in new window
- located at bottom
of page (web-based
input-output model).
"...designed to enable
the user to evaluate
and predict the waste
outputs from aquaculture
ventures for a variety
of aquatic organisms.
Includes over 18
Beekeeping Conversion
Calculators inlcuding:
"...Honey/Supers/Wax;
Frame Wire; Frame
Nails; Parrafin Wax;
Brood Production And
Egg-Laying Rates.
Beeking Spreadsheets
include: "...Colony
assessment; Spreadsheet
to produce graphs
of morphometry data
for 30 wings; Recording
system for queen rearing;
Planner of all the
operations in queen
raising.
HONEY PRODUCTION CALCULATORS,
APPLETS, ANIMATIONS
& SIMULATIONS
Provides fertiliser
rates to meet the
crop nutrient needs
based on soil test
results. It also calculates
the value and application
rates of animal manure
as a nutrient source
for specific field
conditions.
The Spatial Nutrient
Management Planner
(SNMP) is a decision
support tool that
facilitates the collection,
analysis and presentation
of spatial information
related to nutrient
management planning..."
"...available for
the lower 48 contiguous
U.S. States..." USE
SNMP to: "...(1) delineate
farm and field boundaries
and local features
such as location of
streams; (2) automatically
create soil test maps
of the farm and generate
fertiliser recommendations
for selected crops;
(3) determine manure
distribution networks
for the operation.
An
Excel
spreadsheet model
for the planning of
co-composting systems
for mixtures of dairy
manure and other organic
wastes. Co-Composter
provides mass and
volume balances, area
estimations, and a
cost analysis of alternate
composting systems
based on inputs entered
on the user.
Imput Material Values
include: "...Beef,
Dairy, Horse, Pig,
Poultry & Sheep Manure/Waste;
Vegetable Waste, Grass,
Coffee Grounds, Leaves,
Straw, Woodchips,
etc.)..." "...solves
for the TOTAL carbon
to nitrogen ratio
of up 4 materials
(or less) in a mix.
The calculations use
average bulk weights
per cubic foot, average
moisture contents
and take into account
the availability of
carbon.
Imput Material Values
include: "...Nitrogen
Source (Beef, Dairy,
Horse, Pig, Poultry,
Sheep, & Fish Liquid
or Solid Manure/Waste;
Grass Clippings, Hay
etc.); Carbon Source
(Grass Clippings,
Hay, Paper, Cardboard,
Straw, Sawdust, etc.);
Volume of your Tractor
Bucket; & Desired
Moisture Content of
your Mix..." "...determines
the amount of carbon
source material and
water needed to create
a good compost mix.
Input values include:
"...Fertilizer Costs;
Crops; Type of Manure,;
Typr of Application;
Crop Removal Value
of Manure Nutrients;
Estimated liquid pit
manure characteristics
(lbs./1,000 gallons
of manure) - Livestock
Stages; Crop Removal
of Nutrients in Harvested
Portion.
Calculators
for Sensor-Based Nitrogen
Rate include: "...Winter
Wheat, Spring Wheat-Rainfed,
Spring Wheat-Irrigated,
(Argentina) Trigo-Región
Pampeana Central y
Norte, (China) Winter
Wheat, Corn-Rainfed,
Corn-Irrigated, (Argentina)
Maíz sin Riego,
(Argentina) Maíz
bajo Riego, Bermudagrass
& Sorghum.
The MASS spread rate
gives the area density
of a flat, surface
of uniform thickness
which is also known
as the plate density..."
Includes: "...Pounds
per acre/kg per sq.metre;
pounds per sq.inch/grams
per sq.mm.
Weed
emergence is determined
primarily by two factors:
soil temperature and
soil moisture availability.
These two factors
are influenced by
weather and soil management
such as tillage.
Multimedia
Weed Database (Text
& Images). "...The
purpose of this survey
is to monitor the
evolution of herbicide-resistant
weeds and assess their
impact throughout
the world.
