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VANE change detection that works online

VANE change detection that works online

Investigate changes before and after events like fire, drought, flood and other natural disasters as well as human activity like construction rate in some region or crop cultivation. Code your own algorithms to estimate intensity or spreading of changes.

How to make online products on satellite images: Get RGB image

How to make online products on satellite images: Get RGB image

For October 1, 2016, we get RGB with correction of the brightness by &color=brightness>5000,brightness< 13000 .

For RGB processing you need to choose three bands of b4,b3 and b2 by select=b4,b3,b2  and type of the processing as &op=rgb

Query template

http://sat.owm.io/sql?select=b4,b3,b2&where=day=2016-10-01&op=rgb&color=brightness>5000,brightness<13000&polygon={"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[-121.32,37.65],[-121.32,37.72],[-121.11,37.72],[-121.11,37.65],[-121.32,37.65]]]}}&APPID={APIKEY

Queries for satellite images with VANE SQL v 0.2: Time

Queries for satellite images with VANE SQL v 0.2: Time

Choose images on the specific date, for the particular period, pick up the best images for the last month or week, and many other options.

Happy New Year

Happy New Year

OpenWeatherMap team wishes you a happy New Year! Thank you for being with us this year, we hope to see you in 2017.

VANE fire detection that works online

VANE fire detection that works online

Setup your formulas and color schemes of change detection to make it applicable for  fire.

How to make online products on satellite images: Setup your color scheme of NDVI

How to make online products on satellite images: Setup your color scheme of NDVI

You can setup your color scheme absolutely flexibely by playing with a parameter &color=0.03:fcfefcff; ... This parameter consists of pairs of numbers like 0.03:fcfefcff separated by semicolons where:

0.03 - NDVI value from 0 to 1

fcfefcff - HTML colors

Beautiful maps: Deserts: Namib Desert

Beautiful maps: Deserts: Namib Desert

The Namib is a coastal desert in southern Africa. The name Namib is of Nama origin and means "vast place". According to the broadest definition, the Namib stretches for more than 2,000 kilometres along the Atlantic coasts of Angola, Namibia, and South Africa.

Happy Christmas weather

Happy Christmas weather

Openweathermap team wishes happy Merry Christmas and a beautiful holiday weather for New Year to all our users and visitors! Thank you for being with us this year!

As a Christmas gift, we've prepared some special weather widget, that you can embed into your site or blog to watch for the holiday weather in your city area. You can get it at the weather widgets page that's been announced recently.


How to make online products on satellite images: Compute NDVI for any date

How to make online products on satellite images: Compute NDVI for any date

We choose one day, October 1, 2016, as an example and calculate NDVI for our polygon.

Query template

http://sat.owm.io/sql?select=b5,b4&where=day=2016-10-01&op=ndvi&polygon={"type":"Feature","geometry":{"type":"Polygon","coordinates":[[[-121.32,37.65],[-121.32,37.72],[-121.11,37.72],[-121.11,37.65],[-121.32,37.65]]]}}&APPID={APIKEY}

One of the most popular cases for weather API’s usage is the weather widgets.

One of the most popular cases for weather API’s usage is the weather widgets.

OpenWeatherMap provides a bunch of weather API’s for developers, who create this kind of apps and many others. But our site is quite visited by users who’d like to check the weather for the certain city - so we created a various stuff of widgets you can copy and paste into your web page or blog as a ready-to-use JS code snippets no programming skills required.