Topics:

G-Rad Home

• Personnel
• Internal Pages

Observing Networks

• Observation Networks
• SURFRAD Network
• NEUBrew Network
• Antarctic UV Network

Measurements & Instruments

• Instrument Descriptions
• Baseline Sites Daily Plots

Calibration Facilities

• Broadband Solar
• Central UV Calibration Facility

Solar Calculators

• Solar Calculator
• Sunrise/Sunset (Old version)
• Solar Position (Old version)

Information

• Radiation Primer
• Barrow Snow Melt Dates
• Terminology
• "Red Sky in the Morning"

Data

• MLO Transmission
• Global Remote FTP Server
• SURFRAD FTP Server
• CUCF FTP Server
• NEUBrew FTP Server

• GMD Organization
  • Aerosols
  • GMD Radiation
  • Carbon Cycle Gases
  • Trace Gases
  • Ozone & Water Vapor
  • Observatory Operations
• Contact GMD
• GMD Intranet

Please note: inclusion in this list does not imply any endorsement by NOAA or the Department of Commerce. Links are provided with no guarantee of data quality or accuracy. When you click on any of the links below, you will be leaving the NOAA site. You may wish to review the privacy notices on these external sites, as their information collection practices may differ from NOAA's. If you have any trouble with information obtained from any of these links, please contact their respective webmasters.

Calculations:

• Low Accuracy Equations in PDF format
• National Renewable Energy Laboratory Solar Position Calculators
• U.S. Naval Observatory online calculators for solar and lunar position
• JPL's Horizons System accurate ephemerides for solar system objects

Daylight Saving Time:

• Daylight Saving Time information for the U.S.
• Daylight Saving Time on WebExhibits more information
• Canadian Time Zone and Daylight Saving Time
• TimeTemperature.com U.S. Time Zone Map

Education:

• Basics of Space Flight from NASA'a Jet Propulsion Lab
• Phil Plait's Bad Astronomy guide to astronomy misconceptions
• Solar Learning Activities from NASA and Montana State University
• Analemma Page describes how earth's tilt affects us

Latitude and Longitude:

• ZipInfo.com find U.S. lat/long from zip code
• PlacesNamed.com Geographic Encyclopedia for U.S.

Time and Timekeeping:

• The Official U.S. Time from the National Institute of Standards and Technology
• A Walk Through Time -- a great overview of the history of timekeeping
• USNO's Systems of Time page Does anybody really know what time it is?
• Local Apparent Sidereal Time from the USNO
• Calendars and Timekeeping from Best of the Web

NOAA Solar Calculator Calculation Details

Time Zone Table Solar Calculator Glossary