Weather news

We have good news about a new version of Weather Station API 3.0!

We have good news about a new version of Weather Station API 3.0!

Now you can collect data from your stations for any period of time.
Also we added support service for receiving the aggregated information with different intervals (minute/hour/day). Thus you can get a summary history of measurements from your meteorological station for several years in one request.  
http://openweathermap.org/stations#get_measurements

Weather alerts from OpenWeatherMap

Weather alerts from OpenWeatherMap

We invite you to try our new product - the weather alerts which are based on our meteorological data.

Now you can use simple syntax and a few methods of the API to create triggers which will be working upon the occurrence of specified weather conditions (temperature, humidity, pressure, etc.) in a certain period of time. For example, if you are interested in the forecast of approach of frosts or probability of strengthening of wind in a certain place, then you can get this information by using our new tool. More detailed description of work with service is given below.

The alerts will be generated in our service after performing conditions of the trigger. It is necessary to poll service with a certain interval of time to receive it. In the future we are planning development of this direction, addition of push-notifications and new data sources.
http://openweathermap.org/triggers

Weather Alerts structure
http://openweathermap.org/triggers-struct

How to make online products on satellite images: Preparation

How to make online products on satellite images: Preparation


We have prepared several cases for your close acquaintance with our product and we hope you will like it! Let's start from the very beginning:

Queries for satellite images with VANE SQL v 0.2: Operation with an image

Queries for satellite images with VANE SQL v 0.2: Operation with an image

Choose Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), RGB or change detection operations with images

How to make online products on satellite images and integrate them to agricultural applications

How to make online products on satellite images and integrate them to agricultural applications

Hello, everyone!
We have good news for you)
How to make online products on satellite images and integrate them to agricultural applications.
It is a scope of workouts that might be useful for precision agriculture applications. You can learn how to query satellite images to form scenes in RGB, NDVI with any color scheme with flexible customization of any parameters for any crops. Just integrate any query into the application to get instant result.
http://owm.io/cases/agri

Satellite imagery: Landsat 8 and its Band Combinations.

Satellite imagery: Landsat 8 and its Band Combinations.

In the current version of VANE Language, we use images from Landsat8 satellite which captures the Earth’s entire surface every 16 days. The satellite makes hundreds of images with a unique name for each one like LC81410552016219LGN00 and a pixel size of 30 meters, each image consists of 11 bands, the size of the uncompressed image is 2 GB.
Landsat 8 Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS) images consist of nine spectral bands with a spatial resolution of 30 meters for Bands 1 to 7 and 9. New Band 1 (ultra-blue) is useful for coastal and aerosol studies, and also new Band 9 is applicable for cirrus cloud detection. The resolution of Band 8 (panchromatic) is 15 meters. Thermal Bands 10 and 11 provide more accurate surface temperatures and are collected at 100 meters. Approximate scene size is 170 km north-south by 183 km east-west (106 mi by 114 mi).
By default, we get B2, B3, B4, B5, B7, but it is possible to download any other bands

Queries for satellite images with VANE SQL v 0.2: Layers

Queries for satellite images with VANE SQL v 0.2: Layers

Set up the number and type of the layers that will construct your image to get grayscale image, RGB composed of 3 layers, or from combination of any other available layers.
In the current version of VANE Language, we use images from Landsat8 satellite. By default, we get B2, B3, B4, B5, B7, but it is possible to download any other bands. In the forthcoming version of the language, you can configure formulas like (b4-b3)/(b4+b3), NDVI(b4,b3) and many others.

Beautiful maps. Snows and Glaciers: Greenland.

Beautiful maps. Snows and Glaciers: Greenland.

The face of our planet is changing constantly. There are several reasons of this process, they are of natural and technogenic (i.e. a result of human activity) origin.
One of such processes that we can observe during the past decades is ice melting. And in particular, there is melting of big glaciers. This factor is a crucial one that impacts changing of the Earth’s surface the most. The matter is that this type of ice melting has the most influence on the level of the World Ocean, in comparison with melting of sea ice which is already in the water. Thus, observation of glacier melting has a great significance not only as a signal point in global warming, but also due to its impact on the level of a global ocean.

Weather Stations API 3.0

Weather Stations API 3.0

OpenWeatherMap is happy to announce good news for owners of private weather stations! We are launching a new version of Weather Stations API 3.0. Now there are more easy ways to manage your stations and transmit its data.   http://openweathermap.org/stations-30

Queries for satellite images with VANE SQL v 0.2: Tiles or polygons

Queries for satellite images with VANE SQL v 0.2: Tiles or polygons