Frequently Asked Questions
What is CLIMA TERRA?
CLIMA TERRA is a global climate and environmental experience in PWA format that turns open data into visual, short and useful messages.
What is it for?
It helps people understand temperature, UVI, humidity, wind, hourly precipitation probability and air quality using model estimates.
Who created CLIMA TERRA?
It was created by Alfonso Rodríguez (@alfonsoAIData), from Arcos de la Frontera, Spain, as part of his digital experiences portfolio.
Why was it created?
It was created to translate open climate and environmental data into clear support messages: caring without ordering or alarming.
How is it different from a conventional weather app?
It does not focus on accumulating forecasts, tables or data. Its value is interpreting data and turning it into simple daily messages.
What does PWA mean?
It means Progressive Web App: it works from the browser and, on compatible devices, can be installed as a web app without an app store.
What data does it show?
It shows temperature, UV index, humidity, wind, hourly precipitation probability, US AQI and PM2.5. The provider’s estimated feels-like temperature adds context.
What does using open data mean?
It means CLIMA TERRA relies on accessible sources such as Open-Meteo and OpenStreetMap / Nominatim to retrieve and interpret climate, environmental and location information.
Is CLIMA TERRA free?
Yes. CLIMA TERRA is free, requires no registration and includes no user accounts or payments.
Is it independent?
Yes. It is an independent project by Alfonso Rodríguez. It is not an official service and does not represent the data sources it uses.
Which devices does it work on?
It is designed for mobile, tablet and desktop through a modern browser. PWA installation depends on the operating system, browser and device settings.
How does it help interpret temperature?
Air temperature is distinguished from the provider’s feels-like estimate. Humidity and wind add context when readings are compatible; mild temperatures do not guarantee comfortable outdoor conditions.
How does it help interpret UVI?
UVI helps understand ultraviolet radiation. When it is high, CLIMA TERRA prioritizes messages such as shade and sun protection.
How does it help interpret humidity?
Relative humidity is described as very low, low, moderate or high. In warm conditions it may be described as “High with heat”; high humidity in cold weather is not treated as mugginess.
How does it help interpret wind?
Wind speed and its influence on cold are interpreted. Gusts are not described because that variable is not requested.
How is precipitation probability interpreted?
The percentage is precipitation probability for an hourly period, not observed rainfall or intensity. It is described as low, moderate or high; it cannot confirm that it is raining, that the day will be dry or how much will fall.
How are readings kept up to date?
Freshness is checked while you use the app and when you return. Expired readings are refreshed using the selected location, without tracking movement. If retrieval fails, the old reading is not presented as current. New weather readings cannot be obtained offline.
What does AQI mean?
AQI is the US Air Quality Index. In CLIMA TERRA, values from 0 to 50 are described as good air quality.
Why do messages change according to several factors?
Feels-like temperature, humidity and wind can change the thermal interpretation. UV and air quality retain their own assessments. Only compatible readings are combined; there is no overall safety score.
Can it help with more conscious daily decisions?
Yes. It can provide context for sun exposure, outdoor activity, hydration or daily preparation, always using personal judgement.
Does CLIMA TERRA replace an official forecast or alert?
No. It does not replace official forecasts, emergency alerts, official meteorological services, medical recommendations, diagnoses or professional decisions.
Does CLIMA TERRA store personal data?
It requires no registration and creates no profiles. It stores minimal preferences such as language. The location and readings stay temporarily in memory for the query and its refresh, without persisting coordinates. Providers receive the information needed to respond.
Why does CLIMA TERRA request my location?
It uses it to retrieve climate and environmental conditions around you. Permission is controlled by the browser or operating system.
What happens if I do not allow location access?
You can try again or manually search for any city or place. The main experience remains available.
Can I manually search for another place?
Yes. Search remains available whether or not you share your location.
Can it open a specific location from a link?
Yes. A link can include latitude, longitude, a visible place name and language. Those coordinates are used temporarily for the query and its refresh, without being stored as a persistent preference.
Do the data correspond exactly to the selected point?
Not necessarily. They may come from a weather or environmental grid associated with the area around the coordinates.
What do the Temperature, Ultraviolet index and Air quality panels provide?
They add context and general guidance. The air-quality panel explains the difference between US AQI and PM2.5 and separates Open-Meteo data from CLIMA TERRA's interpretation and reference sources.
Are the recommendations medical advice?
No. They are general guidance and do not replace professional advice, official alerts or emergency recommendations.
Who provides the current data?
The current sources and the exact role of each service are documented in Sources and transparency.
What is the role of the official NASA, EPA and WHO references?
NASA provides general background on air quality, the U.S. EPA documents the US AQI system, and WHO provides general context on air pollution and health. None of these organisations supplies CLIMA TERRA’s current modelled data, calculates its displayed values, validates or sponsors the project.
What does PM2.5 mean?
It is the concentration of fine particles with an aerodynamic diameter of 2.5 micrometres or less, expressed in µg/m³.
What is the difference between AQI and PM2.5?
US AQI is a general air-quality index. PM2.5 is a specific concentration of fine particles. They are displayed together but are not equivalent.