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雪平 王
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Aurora Map: Aurora All
Aurora Map: Aurora All5.0
Observing auroras requires not only paying attention to the probability. Cloud cover, light pollution, sun height, moon height can also affect the visibility of auroras. The Aurora Map App fully considers the impact of these factors in the map and forecast part, making it a comprehensive auror
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Weather with Yesterday
Weather with Yesterday5.0
Weather with Yesterday forecast weather by comparing with yesterday. When we obtain weather information, we sometimes want to know the difference between today's weather and yesterday's weather. Is it colder, wetter, or windier? By comparing it with yesterday's weather, you will get a more realis
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River Stages
River Stages4.8
The River Stages App provide more than 10000 river gauges of the NWPS in USA. First,you can check the information of each gauge, such as stage flow, stream flow. If available, also can view the PH,water temperature data which is provided by the USGS. In addition, the App can view the obse
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Health Weather
Health Weather4.8
Health Weather is an APP that pays attention to the impact of weather changes on human health, analyzes and log the impact of weather factors, predicts the health weather index, and makes early warnings for weather changes. Many people often have headaches or joint pains before rain. Many st
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Solunar Calculator
Solunar Calculator4.7
The App provides the following services for users: Basic: 1、 sunrise,sunset,magic hour,dusk ,dawn and the position of sun 2、moonrise,moonset,moonphase and position of moon,the visibility time of galactic center 3、trace moon's,sun's path by using AR 4、show postion,direction of moon and sun On map
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Astronomy Observer
Astronomy Observer4.7
Astronomy Observer app is an app that help astronomical observers to arrange their observation plans reasonably.     Thanks to the improvement of the computing power of mobile phones and the application of new technologies (AR), it is possible to calculate the position of celestial bodies and the
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Clock and Almanac
Clock and Almanac4.6
With the progress of globalization, we communicate with people all over the world more and more frequently. Or your friends and relatives go to work, study and live all over the world. So we need to be concerned about the time and time zone of their city, the calendar and working day arrangements
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Meteo Calc: Weather Forecast
Meteo Calc: Weather Forecast4.6
Meteo Calc is an app that analyzes the current weather status.  Analyze atmospheric conditions with temperature, humidity and air pressure, obtain data such as dew point, wet bulb temperature, air density, vapor pressure, and enthalpy. Combining temperature, humidity or dew point temper
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Elevation Map-Mountain Weather
Elevation Map-Mountain Weather4.6
As the altitude increases, the air becomes thinner, the temperature decreases, the air pressure decreases, the boiling point of water decreases, the oxygen content in the air decreases, and the oxygen partial pressure decreases. When we climb higher mountains or go to high altitude areas, this knowl
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Fishing Index-Fishing Weather
Fishing Index-Fishing Weather4.4
Fishing Index - Fishing Weather App is a app that helps fishermen to fishing scientifically and reasonably. Fish activities are related to many weather conditions. The influence of water temperature and atmospheric pressure is most obvious, but the influence of temperature on water temperature
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Tides and Currents
Tides and Currents2.9
Tides and Currents provide 1285 harmonic tide stations,2199 subordinate tide stations and 849 harmonic current stations, 1707 subordinate current stations of USA. This app predicts tides and currents by using harmonic analysis calculations within the app. So the APP can provide tide and current da
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Surf Report
Surf Report-
Surf Report provide surf forecast of 6268 surf spot in the world. Surf report add filter to select the best time to surf. the filter include time, swell height, swell period, swell direction, wind speed, wind direction. 【Pro】 Surf Report for 9 days Purchase rules: [Monthly Pro] Purchase a month
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Lunar Tide
Lunar Tide-
Lunar tide is a watch app which eastimate tide by calculating tidal force of sun and moon combined consider lunitidal interval。 The lunitidal interval is defined as the time interval between the transit of the Moon and the next high water or low water.<br><br>Please Note:<br>1. Before buy the app ,y
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