Solar Noon:

This page is an older version of NOAA Solar Calculator. As the computer was first created, we decided to use a nonstandard definition of longitude and time zone to reduce the ambiguity of coordinate input as it goes back. Therefore, on this page, longitude and time zone are defined as not good for the West. It is not an international standard on the east side of the main meridian.

This page is due to the favor of those who like old calculators for some reason. For others, we recommend trying to update the version of the NOAA Solar Calculator here.

Choose a location from the City drop-down menu or select Enter Latency / Length -> from the drop down menu and manually enter the latitude, longitude, and time zone information in the appropriate text box To do. Use the following symbolic notation. Latitude and longitude are degrees / minutes / second, or the decimal number entered in the Degrees field. When you select a city from the drop down menu, the latitude, longitude, and time zone fields are automatically entered. To manually enter the latitude, longitude, or time zone, be sure to select [Enter latitude / length -] from the city drop down box. Otherwise, the number will be overwritten at the selected city location.

You can enter a different time zone for the location by selecting "Enter latitude / length ->" in the city drop down box. Otherwise, the time zone associated with the local standard time of the selected city is automatically entered. If you select "Yes" in the daylight saving time field, the resulting sunrise, sunset, and noon are adjusted one hour ahead. If you do not know the time zone of your location, please see the time zone table.

The program gets the current date from the computer and enters it into the month, day, year field. To perform calculations on different dates, simply select the month from the drop down menu and enter the date and 4-digit year in the appropriate input box. When entering a date or year, you need to click the "calculate sunrise / sunset" button to update the results for this day.

After displaying the calculation results you can use the "print" function of the web browser to get a hard copy of the result.

In places above the Arctic Circle and below the Antarctic, if there is no sunrise or sunset on a particular day, the program will find the local sunrise or sunset local time and date, and the next sunrise or sunrise. When this occurs, the UTC field will display "previous" or "next" information instead of UTC time.

Note: For latitude exceeding 72 degrees north latitude, the calculation is accurate within 10 minutes. If the latitude is less than +/- 72 °, the accuracy is about 1 minute. For detailed procedure, please refer to "Solar calculation details".

The summer solstice of Longyearbyen in Svalbard is far beyond the Arctic Circle and reaches only 35 ° noon at noon. By contrast, in my home Pierre, the sun's height at noon on the same day is 69 °. We have to wait until late October to arrive at 35 ° sun altitude at noon. Choosing the surface temperature as an agreement is an accidental choice. Because I can use it on land and at sea to measure ice and ocean temperatures. This procedure is different at sea. Because I have to get measurements from the side of the ship. On land, I read the ground about 2 meters. This means that the two data sets can not be compared with each other.

From a physical point of view, the sun will be perpendicular to the rock at noon. When direct sunlight of about 6 hours hits the rock, it not only heats the rock but it can also stimulate the temperature. As the sun slowly and unconsciously descends, the wind speed gradually becomes faster. Environmental factors are obviously weakening the tranquility of recent times. A strong wind blows to the side of the heated rock and the wind becomes only more aggressive. The rock will remain stationary at that position, but wind will still damage the rock. Then it begins: windy meals. The thin sand is pulled from the flat desert ground, robbed by the wind and constantly throws on the opposite side of the rock. Since it will not stop such natural phenomena, the rock will penetrate the entire erosion process within a few hours from now.