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Mosaics

In this section you can find mosaics generated by MOSRI, a Real Time Mosaic generation system. Images are published as soon as products covering new time periods are processed, or when certain time series focusing on a specific area of the Earth are requested by users. The mosaics are categorized by mission (Envisat, Alos, Terra, Aqua, Metop, etc.) and by sensor (Asar, Meris, Modis, etc.).

Disclaimer

These images are property of Chelys. For copyright purposes, please ask our permission before using them. Due to the image size, the image files have been highly compressed. If you would like the uncompressed versions (sharper and more detailed), please send us an e-mail.

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Envisat – Meris Reduced Resolution Mosaic of the World

Description

Over 2000 Level0 Reduced Resolution products from the MERIS instrument onboard the Envisat satellite were collected in the time period from January to August 2008 and processed by Chelys Satellite Rapid Response System (SRRS) to generate high quality images.
The images were projected to obtain this composite view using MOSRI, a real time mosaic generation system, which automatically removes clouds and shadows while combining the data.

The World from MERIS – Summer 2008

The World from MERIS - Summer 2008

The World from MERIS - Summer 2008

image details
satellite ENVISAT
instrument Meris
mode Reduced Resolution
date acquired January/August 2008
acquisition centre Frascati (ITALY), Kiruna (Sweden), Matera (ITALY)
projection 0.02 degrees/pixel – Plate Carrée
bands used Meris 1,2,3,4,5,6
software SRRS (raw data processing and image generation)
MOSRI (projection, orthorectification and mosaic)
credit CHELYS srl
resolutions 2km (29 MB)
4km (7.12 MB)
8km (1.99 MB)
16km (612 KB)
Navigate online the Mosaic at full resolution


Envisat – SAR Sharpening

Description

This is a Mosaic generated by Chelys MOSRI, using a technique we call “SAR-Sharpening” due to its similarity to a method known as PAN-Sharpening.
PAN-Sharpening merges high resolution panchromatic and lower resolution multispectral imagery to create a single high resolution color image. “SAR-Sharpening”, on the other hand, uses a radar image instead of a panchromatic one.
In this image, we maintained the resolution of the MERIS sensor (250m) while greatly enhancing the level of detail using an ASAR mosaic with a 75m resolution.

ITALY

SAR-Sharpened Mosaic of Italy

SAR-Sharpened Mosaic of Italy

image details
satellite ENVISAT
instrument Asar, Meris
mode Image Mode Medium Resolution, Meris Full Resolution
date acquired Asar January/July 2009 – Meris April/November 2008
acquisition centre Matera (ITALY)
projection 0.003 degrees/pixel – Plate Carrée
orthorectification 3 arcseconds resolution
bands used Asar IS1/IS7 – Meris 1,2,3,4,5,6
image type Mosaic
software SRRS (raw data processing and image generation)
MOSRI (projection, orthorectification and mosaic)
credit CHELYS srl
resolutions 250m (6.31 MB)
500m (1.71 MB)
1km (567 KB)


Envisat – ASAR Image Mode Medium Resolution

Description

This is an ASAR Image Mode Medium Resolution Mosaic generated with images acquired in the time period from January to July 2009. Source images were generated starting from ENVISAT/Asar products using the Chelys Satellite Rapid Response System and projected, orthorectified (with a NASA DEM of 3 arcseconds of resolution) and merged in this mosaic by Chelys Mosri, a real time mosaic generation system, at the original resolution of 75 meters (0.000833 degrees per pixel). The mosaic was generated in less than 1 minute.

ITALY

ASAR Image Mode Medium Resolution Mosaic of Italy

ASAR Image Mode Medium Resolution Mosaic of Italy

image details
satellite ENVISAT
instrument Asar
mode Image Mode Medium Resolution
date acquired January 2009 – July 2009
acquisition centre Matera (ITALY)
projection 0.000833 degrees/pixel – Plate Carrée
orthorectification 3 arcseconds resolution
bands used N/A
image type Mosaic
software SRRS (raw data processing and image generation)
MOSRI (projection, orthorectification and mosaic)
credit CHELYS srl
resolutions 75m (18.2 MB)
150m (5.94 MB)
300m (1.86 MB)
600m (551 KB)


Envisat – Meris Full Resolution

Description

These are Meris Full Resolution Mosaics generated with images acquired in the time period from April to November 2008. Source images were generated starting from ENVISAT/Meris satellite raw data using the Chelys Satellite Rapid Response System and projected, orthorectified (with a NASA DEM of 3 arcseconds of resolution) and merged in this mosaic by Chelys Mosri, a real time mosaic generation system, at the original resolution of 260 meters (0.003 degrees per pixel). The mosaic was generated in less than 2 minutes.

ITALY

MERIS Full Resolution Mosaic of Italy

MERIS Full Resolution Mosaic of Italy

image details
satellite ENVISAT
instrument Meris
mode Full Resolution
date acquired April 2008 – November 2008
acquisition centre Matera (ITALY)
projection 0.003 degrees/pixel – Plate Carrée
orthorectification 3 arcseconds resolution
bands used 1, 2, 3, 4, 5, 6
image type Mosaic
software SRRS (raw data processing and image generation)
MOSRI (projection, orthorectification and mosaic)
credit CHELYS srl
resolutions 250m (3.45 MB)
500m (2.15 MB)
1km (911 KB)

CZECH REPUBLIC

MERIS Full Resolution Mosaic of Czech Republic

MERIS Full Resolution Mosaic of Czech Republic

image details
satellite ENVISAT
instrument Meris
mode Full Resolution
date acquired April 2008 – November 2008
acquisition centre Matera (ITALY)
projection 0.003 degrees/pixel – Plate Carrée
orthorectification 3 arcseconds resolution
bands used 1, 2, 3, 4, 5, 6
image type Mosaic
software SRRS (raw data processing and image generation)
MOSRI (projection, orthorectification and mosaic)
credit CHELYS srl
resolutions 250m (1.31 MB)
500m (445 KB)

SWITZERLAND

MERIS Full Resolution Mosaic of Switzerland

MERIS Full Resolution Mosaic of Switzerland

image details
satellite ENVISAT
instrument Meris
mode Full Resolution
date acquired April 2008 – November 2008
acquisition centre Matera (ITALY)
projection 0.003 degrees/pixel – Plate Carrée
orthorectification 3 arcseconds resolution
bands used 1, 2, 3, 4, 5, 6
image type Mosaic
software SRRS (raw data processing and image generation)
MOSRI (projection, orthorectification and mosaic)
credit CHELYS srl
resolutions 250m (1.38 MB)
500m (491 KB)

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