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MARTINDALE'S
CALCULATORS ON-LINE CENTER PART I: I-N NAVIGATION - GPS |
GEOGRAPHICAL NAMES, GEOGRAPHICAL COORDINATES, ETC.
ALEXANDRIA DIGITAL LIBRARY GAZETTEER SERVER - Alexandria Digitial Library Project (ADL), University of California, Santa Barbara For more information see Research or the Alexandria Digitial Library Project (ADL) GETTY THESAURUS OF GEOGRAPHIC NAMES ON LINE - The J. Paul Getty Trust For more information see the Conducting Research; Research at Getty or The Getty Australia AUSTRALIA GEOGRAPHIC PLACE NAMES (GAZETEER) - Environment Australia, Department of the Environment & Heritage, Sydney, Australia For more information see GIS Tools; Australian Maps & Databases or Department of the Environment & Heritage U.S. GEOGRAPHIC NAMES INFORMATION SYSTEMS (GNIS) - U.S. Geological Survery (USGS), Department of the Interior For more information see the U.S. Geological Survery |
GIS TOOLS - CALCULATORS - Bureau of Economic Geology, University of Texas VERY EXTENSIVE. GIS Calculators include:
DegMinSec to DecDeg Calculator; DecDeg to DegMinSec Calculator; Scale Calculator Calculator; Degrees to Radians Calculator; Time to GPS Seconds Calculator..."
GIS Calculators include:
Decimal Degrees to Degrees, Minutes and Seconds Calculator; AMG Coordinates to Geographic Calculator; Geographic Coordinates to AMG Calculator; etc..."
Inverse/Forward/Invers3D/Forwrd3D Calculators include
State Plane Coordinates Calculator State Plane Coordinates Calculator
Surface Gravity Prediction Calculator in the Conterminous USA Surface Gravity Prediction Calculator in the Conterminous USA
Tidal and Orthometric Elevations Calculator: CO-OPS/NGS Elevation Data Tidal and Orthometric Elevations Calculator: CO-OPS/NGS Elevation Data
DEGREES <> DECIMAL CALCULATORS & APPLETS
MAP SCALE CALCULATORS & APPLETS
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PLANIGLOBE - M. Weinelt, S. Körsgen & R. Kantz, kk+w - digitale kartografie GmbH, Bundesrepublik Deutschland (Germany) VERY VERY VERY...EXTENSIVE & VERY FAST. With Planiglobe "...you may generate maps interactively at planiglobe. Zoom in and out, search for places and add your own locations to a map..." GAZZA'S INTERACTIVE MAPS: WHERE ARE WE? - G. Nicholson, WhereAreWe?, i Mapping Ltd., New Zealand VERY VERY VERY...EXTENSIVE. For more information see Gary Nicholson's Old Home Page; WhereAreWe? or i Mapping Ltd.
"...The foundation of the system is the free GIS, Map Maker Gratis. If your mapping needs are basic simply use Map Maker Gratis for free. Map Maker Gratis and Map Maker Pro are in one program, so at any time you can unlock the power of Map Maker Pro by buying and entering a licence number..." GMT-3: THE GENERIC MAPPING TOOLS - Developed and Maintained by: P. Wessel & W.H.F. Smith, Department of Geology and Geophysics, School of Ocean and Earth Science and Technology (SOEST), University of Hawai'i at Manoa VERY EXTENSIVE & VERY FAST. "...GMT is a free, public-domain collection of ~50 UNIX tools that allow users to manipulate (x,y) and (x,y,z) data sets (including filtering, trend fitting, gridding, projecting, etc.) and produce Encapsulated PostScript File (EPS) illustrations ranging..." For more information see Pål (Paul) Wessel's Home Page |
DISTANCE CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS LOCATION CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS GREAT CIRCLE CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS GEOGRAPHIC MIDPOINT CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS GEOGRAPHIC MIDPOINT CALCULATOR WITH MAPS - Dean Schmidt VERY VERY VERY...EXTENSIVE. "...The geographic midpoint for any two cities is located halfway along the great circle route, which is the shortest route that runs between both cities..." Geographic Midpoint Calculator with Maps
CALCULATOR FOR DISTANCES BETWEEN GEOGRAPHICAL LOCATIONS - L. Bogan, Department of Physics, Arcadia University, Nova Scotia, Canada VERY VERY EXTENSIVE. Distance between Geographical Locations Calculators include:
DISTANCE AND AZIMUTHS BETWEEN 2 SETS OF COORDINATES CALCULATOR - D. Bickel, Audio Services Division, Mass Media Bureau, Federal Communications Commission (FCC) VERY EXTENSIVE. Distance and Azimuths Between 2 Sets of Coordinates Calculator "...program will calculate the distance and azimuth (referenced to True North) between two sets of coordinates on the earth..." Choose Method of Calculating Distance: "...Distance per Sections 73.208 (FM) and 73.611 (TV)" or 'Distance per the Great Circle Method (AM)..." For more information see Radio Tools or the Audio Services Division GAZZA'S INTERSECTIONS CALCULATOR FOR GREAT CIRCLE ROUTES - G. Nicholson, WhereAreWe?, i Mapping Ltd., New Zealand VERY VERY EXTENSIVE. For more information see Calculators; Gary Nicholson's Old Home Page; WhereAreWe? or i Mapping Ltd. GAZZA'S INTERACTIVE MAPS: WHERE ARE WE? - G. Nicholson, WhereAreWe?, i Mapping Ltd., New Zealand VERY VERY VERY...EXTENSIVE. For more information see Gary Nicholson's Old Home Page; WhereAreWe? or i Mapping Ltd.
Great Circle Mapper "...locations may be specified using FAA, IATA, or ICAO airport codes, or by latitude and longitude..." For more information see Karl Swartz's Home Page GREAT CIRCLE DISTANCE CALCULATOR AND SWELL ARRIVAL CALCULATOR - StormSurf VERY VERY EXTENSIVE. Great Circle Distance Calculator & Swell Arrival Calculator
GREAT CIRCLE DISTANCE CALCULATOR - J. Owen, Wirral Peninsula, County of Merseyside, U.K.. For more information see the Amateur Radio & Audio JavaScript Collection; Amateur Radio & Electronics or John Owen's Home Page GREAT CIRCLE CALCULATOR - E. Williams VERY EXTENSIVE. Great Circle Calculator "...computes true course and distance between points..." For more information see Ed Williams Airport Page GREAT CIRCLE DISTANCES (JAVA APPLET) - P. Kirby VERY EXTENSIVE. For more information see Vector Land HOW FAR IS IT? - Darrel Kindred "...This service uses the University of Michigan Geographic Name Server to find the latitude and longitude of two places, and then calculates the distance between them (as the crow flies). It also provides a map showing the two places, using the Xerox PARC Map Server..." SHORTEST DISTANCE BETWEEN TWO POINTS ON EARTH - H. Ronsmans, Belgium Shortest distance between two points on Earth Calculator "...computes and describes the shortest distance between any two points on this ellipsoid of revolution..." For more information see Herwig Ronsmans' Home Page TIME AND DISTANCE CALCULATOR - AR Group, Inc. "...The information received is only the great circle distance and should only be used as a guide..." For more information see Air Routing International or AR Group, Inc. |
GRID SQUARE CALCULATOR - American Radio Relay League, Inc., Newington, CT "...Amateur Radio uses a bewildering array of "location" schemes. Latitude and longitude are basic, being used for such arcana as satellite tracking and as the basis of the Maidenhead Grid Locator system..." For more information see Grid Info; ARRL Web Location Services or the American Radio Relay League (ARRL)
ASIA-PACIFIC DISTANCE CALCULATORS & APPLETS
MEXICO DISTANCE CALCULATORS & APPLETS
U.S. DISTANCE CALCULATORS & APPLETS
Doppler Shift
Doppler Shift Calculator input values include:
RELATIVISTIC DOPPLER EFFECT CALCULATOR - C.R. Nave, Department of Physics & Astronomy, College of Arts & Sciences, Georgia State University VERY EXTENSIVE. Relativistic Doppler Effect Calculator input values include:
DOPPLER EFFECT (JAVA APPLET) - J.M. Pearce & W. Christian, Department of Physics, Davidson College, North Carolina For more information see For more information see Physlets; WebPhysics or the Department of Physics |
Inverse/Forward/Invers3D/Forwrd3D Calculators include
State Plane Coordinates Calculator State Plane Coordinates Calculator
Surface Gravity Prediction Calculator in the Conterminous USA Surface Gravity Prediction Calculator in the Conterminous USA
Tidal and Orthometric Elevations Calculator: CO-OPS/NGS Elevation Data Tidal and Orthometric Elevations Calculator: CO-OPS/NGS Elevation Data
Magnetic
COMPUTE VALUES OF EARTH'S MAGNETIC FIELD - National Geophysical Data Center (NGDC), NOAA VERY VERY VERY...EXTENSIVE. Earth's Magnetic Field Values Calculators include:
Magnetic Field Calculator (Geomagnetic Online Calculator); U.S. Historic Declination Calculator; Estimated Values of Magnetic Field Properties Calculator..." CORRECTED GEOMAGNETIC COORDINATES - Space Physics Data Facility (SPDF), Goddard Space Flight Center, NASA VERY VERY EXTENSIVE. IGRF/DGRF Model Parameters and Corrected Geomagnetic Coordinates Calculator
GEOMAGNETISM REAL-TIME DATA - Geology Division, United States Geological Survey (USGS) Multimedia Geomagnetism Database (Text & Images). VERY VERY VERY...EXTENSIVE. Geomagnetism Real-Time Data "...plots for today and the previous seven days are available..." For more information see RealTime Hazzard Information; Geology Divisions or the United States Geological Survey GEOMAGNETIC FIELD CALCULATOR - E. Williams VERY EXTENSIVE. Geomagnetic Field Calculator "...computes the earth's magnetic field based on various standard spherical harmonic fits..." For more information see Ed Williams Airport Page MAGNETIC FIELD CALCULATOR - L. Newitt, Canadian National Geomagnetism Program, Geological Survey of Canada, Ottawa, Ontario, Canada VERY VERY EXTENSIVE. Magnetic Field Calculator "...may be used to calculate values of all seven magnetic components: D, I, H, Z, F, X, Y. The Canadian Geomagnetic Reference Field is used to compute values within Canada and adjacent area..." For more information see Canadian National Geomagnetism Program MAGNETIC FIELD CALCULATOR (JAVA APPLET) - Enertech Consultants VERY EXTENSIVE. Magnetic Field Calculator "...calculates lateral profiles of the magnetic field for a system of user-defined conductors. The program is based on Ampere's Law and assumes straight conductors parallel to a flat earth..." For more information see Enertech Consultants THE IGRF APPLET - K. Korhonen, Finnish Meteorological Institute, Helsinki, Finland VERY EXTENSIVE. IGRF Applet "...contains a graphical user interface (GUI) that enables the user to select the desired parameters for map plotting and geomagnetic field calculation..." For more information see Geomagnetism; FMI/geomagnetism or the Finnish Meteorological Institute LINEAR INVERSION CALCULATORS & APPLETS
"...Geophysical inversion can been described as a process used to find a distribution of a physical property that caused a set of physical measurements recorded in a field survey..." Linear Inversion Calculator input values include:
MAGNETIC DECLINATION CALCULATORS & APPLETS
"...The Magnetic Information Retrieval Program (MIRP) uses the CGRF to calculate values of magnetic declination..." For more information see Canadian National Geomagnetism Program MAGNETIC DIPOLE CALCULATORS & APPLETS
Magnetic Dipole Modeling Applet's "...objective is to learn about the magnetic field observed at the ground's surface, caused by a small buried dipolar magnet. In geophysics, this simulates the observed anomaly over a buried susceptible sphere that is magnetized by the Earth's magnetic field..." For more information see Seeing the Earth's Subsurface or the Geophysical Inversion Facility |
TRANSVERSE MERCATOR CALCULATOR - A. Morton, Blackthorn Cottage, Berkshire, U.K. Transverse Mercator Calculator converts "...latitude/longitude co-ordinates to co-ordinates in metres on a Transverse Mercator projection..." For more information see DMAP UNIVERSAL TRANSVERSE MERCATOR COORDINATES - National Geodetic Survey, NOAA Universal Transverse Mercator Coordinate (UTM) system "...provides coordinates on a world wide flat grid for easy computation...divides the World into 60 zones, each being 6 degrees longitude wide..." For more information see Tools or the National Geodetic Survey Marine Navigation, Ocean Navigation, Sea Navigation
OCEAN NAVIGATION CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS SEA NAVIGATION CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS DATALOY DISTANCE TABLE: PORTS DISTANCE & VOYAGE TIME CALCULATOR - Datalay VERY VERY VERY...EXTENSIVE. Dataloy Distance Table: Ports Distance & Voyage Time Calculator includes
23000 Waypoints; 150000 Logical Relations Between Waypoints; 11000 Geographical References including: Capes, Lighthouses, Reefs, Islands, etc..." GAZZA'S NAVIGATION CALCULATORS - G. Nicholson, WhereAreWe?, i Mapping Ltd., New Zealand VERY VERY VERY...EXTENSIVE. For more information see Calculators; Gary Nicholson's Old Home Page; WhereAreWe? or i Mapping Ltd.
Marine Navigation Calculators include:
Altitude Factors & Change of Altitude Calculator; Compass Error from Amplitudes Observed on the Celestial Horizon Calculator; Latitude and Longitude Factors Calculator; etc.
Dip of Sea Short of the Horizon Calculator; Meridional Parts Calculator; Length of a Degree of Latitude and Longitude Calculator; etc.
Barometer Measurement Conversions Calculator; Direction and Speed of True Wind Calculator; Relative Humidity and Dew Point Calculator; Correction of Barometer Reading for Gravity Calculator; etc.
Log and Trig Calculator
Meridional Parts Calculator Meridional Parts Calculator
Traverse Table Calculator Traverse Table Calculator
PHYSICAL OCEANOGRAPHIC REAL-TIME SYSTEMS FOR PORTS
The Physical Oceanographic Real-Time System
"...Measures and disseminates observations and predictions of
Meteorological Parameters
Chesapeake Bay includes
Solomons Island; Washington DC; etc..."
Naval Station Norfolk; Newport News Channel; etc..." Delaware River and Bay Delaware River and Bay includes
Houston/Galveston Houston & Galveston include:
Los Angeles & Long Beach Los Angeles & Long Beach include
New York & New Jersey New York & New Jersey include
Port of Anchorage Port of Anchorage includes
San Francisco Bay San Francisco Bay includes
Soo Locks Soo Locks include
Rock Cut; SouthWest Pier/Upper; etc..." |
"...The lantern's light, even if constant, may flash on and off as the sailboat rises and descends upon the waves. The point where the lantern's light is first observed, or it is observed flashing, is used to determine the boat's position..." Lighthouse Calculator input values include:
Observer's eye level in height in feet above the water..." THE LIGHTHOUSE DIRECTORY - R. Rowlett, Center for Mathematics and Science Education, University of North Carolina, Chapel Hill, NC VERY VERY VERY...EXTENSIVE. "...The Lighthouse Directory is a tool for research and study concerning lighthouses and efforts to preserve those lighthouses..." "...provides information and links for more than 7700 of the world's lighthouses..." For more information see Russ Rowlett's Home Page or the Center for Mathematics and Science Education AUTOMATIC IDENTIFICATION SYSTEM CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
AUTOMATIC IDENTIFICATION SYSTEM (AIS) CALCALC TO DETERMINE THE MESSAGE CAPACITY OF AN AIS BASESTATION - I. Harre, Bremen, Germany VERY VERY EXTENSIVE. Automatic Identification System
Ship at anchor or moored and not moving faster than 3 knots; Ship at anchor or moored and moving faster than 3 knots; Ship 0-14 knots; Ship 0-14 knots and changing course; Ship 14-23 knots; Ship 14-23 knots and changing course; etc..." ELECTRONIC WARFARE CALCULATORS & APPLETS
ELECTRONIC WARFARE (EW) AND RADAR SYSTEMS ENGINEERING HANDBOOK - Electronic Warfare, Naval Air Warfare Center Weapons Division, Point Mugu, CA, United States Navy Multimedia Electronic Warfare & Radar Systemes Course, Interactive Demonstrations & Sample EW Test (Text & Images). VERY VERY VERY...EXTENSIVE. Must enter COURSE via Electronic Warfare page - Click on "Handbook" located on the right hand side. Electronic Warfare and Radar Systems handbook
SPACE & ELECTRONIC WARFARE GLOSSARY - Joe Cyr VERY VERY EXTENSIVE. Space & Electronic Warfare contains Acronyms, Abbreviations and Terms relating to the
Command & Control; Weaponry; General Warfare; Information Warfare; Special Operations; Non-lethal Weapons; Computers; Homeland Security..." ELECTRONIC WARFARE ONLINE INTERACTIVE CALCULATORS - Directorate of Science & Technology, Green Bay Professional Packet Radio (GBPPR) VERY VERY EXTENSIVE. For more information see Homebrew Military & Espionage Electronics or the Green Bay Professional Packet Radio (GBPPR)
Minimum Jammer Power Calculator input values include:
Enemy Transmitter Location-to-Target Receiver Location Distance Elevation of the Jammer Transmitter Location; Jammer Location-to-Target Receiver Location Distance; Terrain and Ground Conductivity Factor..." Urban Area Path Loss Calculator Urban Area Path Loss Calculator input values include:
Height of the Transmitter Location; Height of the Receive Transmitter Location; Distance Between the Transmitter & Receiver Locations; Environment Type..." |
INTRODUCTION TO AIRBORNE RADAR: RADAR PROBLEMS, SOLUTIONS AND PROGRAMS - Authors: P. Wittenberg, T. Jeffrey, P. Lacomme, J. Jie, Z. Shengyun, Y. Zhang, W. Zhiyou & W. Xianhui Multimedia Introduction to Airborne Radar Textbook (Text, Images & Calculators). VERY VERY VERY...EXTENSIVE. Introduction to Airborne Radar Textbook Chapters include:
Antenna output (dB) relative to peak..."
Phase shift (degrees) between elements; Number of elements; etc..."
End angle for plot; etc..."
Pulse Width, Target Two Way Travel Time or Pulse Repetition Frequency; etc..." RADAR ANTENNA CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
Radar Antenna Calculator
Vertical Beamwidth; Antenna Gain; etc..."
RADAR BEAMWIDTH CALCULATORS & APPLETS
BEAMWIDTH CALCULATOR - BEAM PROPERTY CALCULATOR - Warning Decision Training Branch (WDTB), National Weather Service (NWS), NOAA VERY EXTENSIVE. Beamwidth Calculator
RADAR BOUNDARY-RELATIVE SPEED CALCULATORS & APPLETS
Boundary-Relative Speed Calculator
RADAR 'FREE-SPACE RANGE' CALCULATORS & SPREADSHEETS (XLS)
Radar Free-Space Range Calculator
NAVGEN Algorithm to determine 2D Position Fixing Errors; etc..." RADAR HORIZON CALCULATORS & APPLETS
Radar Horizon Calculator is
RADAR PROBABILITY OF INTERCEPT CALCULATORS & APPLETS
Radar Probability of Intercept
RADAR TARGETS AND SHIP MOVEMENTS CALCULATORS & APPLETS
Radar Calculator
RELATED RATES (JAVA APPLET) - C.G. Crawford, Mathematics Department, United States Naval Academy (USNA) VERY EXTENSIVE. Related Rates Calculator
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SPACE NAVIGATION CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS NASA - HUMAN SPACE FLIGHT - REAL TIME ORBITAL TRACKING DATA - NASA For more information see NASA SPACECRAFT TRACKING SYSTEM (JAVA APPLET) - T. Horvath & P. Meyer, Science@NASA Spacecraft Tracking Calculator "...calculates an approximate location for a list of spacecrafts and satellites. You can change some of the information displays using the applets controls..." For more information see Science@NASA SATELLITE CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS - ALL INCLUSIVE
Noise Figure - Temperature Calculator input values include:
DVB Downlink Budget Calculator DVB Downlink Budget Calculator input values include:
Satellite txp. Carrier to co-channel interference; Location; etc..." IF Frequency Calculator IF Frequency Calculator input values include:
Sun Position Autoupdate Calculator Sun Position Autoupdate Calculator input values include:
ANTENNA POINTING CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
Antenna Pointing Calculator input values include:
CIRCULAR ORBIT CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
Circular Orbit Satellite INPUT values include:
Half-angle of Visibility; Maximum Slant Height; Maximum Slant Range; Satellite Velocity; etc...." DVB BITRATE CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
DVB Bitrate Calculator input values include:
FREE SPACE LOSS CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
Free Space Loss Calculator input values include:
LINK BUDGET CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
Forward Service Link Budget Calculator input values include:
User Noise Sensitivity; User Transponder Loss; Polarization Loss; Pointing Loss; Orbital Altitude; etc..." Ground Network Link Budget Calculator Ground Network Link Budget Calculator input values include:
Polarization Loss; etc..."
Latitude/Longitude to IIRV(XYZ) Converter/Coordinate Calculator Latitude/Longitude to IIRV(XYZ) Converter/Coordinate Calculator input values include:
Satellite Link Budget Calculator input values include:
Uplink Antenna, Power at the Feed; Range; Bandwidth; Satellite Uplink G/T dB/K..." LOOK ANGLE CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
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SATELLITE FINDER WITH MAGNETIC NORTH, AZIMUTH & ELEVATION CALCULATOR - E. Johnston, Satellite Signals Ltd., Chelmsford, Essex, U.K. VERY EXTENSIVE. "...This program is to help you with installing and aligning of TV, vsat etc..." Satellite Finder with Bagnetic North, Azimuth & Elevation Calculator input values include:
SATELLITE DESIGN CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
Satellite Look Angle Calculator input values include:
Longitude of Eastern Satellite Arc; etc..." FREE SPACE LOSS CALCULATOR - Comsearch, an Allen Telecom Company Free Space Loss Calculator input values include:
TV Dish, Internet, etc. to Satellite
ANTENNA POINTING, ANTENNA EFFECIENCY, SYSTEM G/T, ETC. CALCULATORS - Satcom Resources VERY VERY EXTENSIVE. Includes over 7 Calculators. For more information see Satcom Resources SATELLITE FINDER WITH MAGNETIC NORTH, AZIMUTH & ELEVATION CALCULATOR - E. Johnston, Satellite Signals Ltd., Chelmsford, Essex, U.K. VERY EXTENSIVE. "...This program is to help you with installing and aligning of TV, vsat etc..." Satellite Finder with Bagnetic North, Azimuth & Elevation Calculator input values include:
FREE SPACE LOSS CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
Free Space Loss Calculator input values include:
SATELLITE LOOK ANGLE CALCULATORS, APPLETS, ANIMATIONS & SIMULATIONS
SATELLITE LOOK ANGLE CALCULATOR - Comsearch, an Allen Telecom Company Satellite Look Angle Calculator input values include:
Longitude of Eastern Satellite Arc; etc..." SATELLITE LOOK ANGLE CALCULATOR - Skycasters, LLC. Look Angle Calculator input values include:
SATELLITE LOOK ANGLE CALCULATOR - VSAT Systems Look Angle Calculator input values include:
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