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Overview

UPCOMING MEETING May 16-19 2011
YOTC International Science Symposium and 8th AMY International Workshop Beijing, China

YOTC Giovanni System (YOTC-GS)

 The Year of Tropical Convyotc_example_picture2.pngection (YoTC), http://www.ucar.edu/yotc/, a joint activity of the World Climate Research Programme (WCRP) and World Weather Research Programme (WWRP)/THORPEX, is a 2-year period (May 2008 – April 2010) of coordinated observing, modeling, and forecasting with a focus on organized tropical convection, its prediction, and predictability. A major obstacle in research and model improvement of tropical convection and its multi-scale structure is that there is currently no single web portal or application that provides “one stop shopping” for the relevant NASA multi-satellite data.

The goal of the NASA Giovanni for the YoTC project is to facilitate NASA satellite data usage by providing a way the YoTC community can easily read, subset, visualize, access, and harmonize data from multiple space-borne sensors.

The NASA Giovanni is a web based application developed by the NASA Goddard Earth Science (GES) Data and Information Service Center (DISC) that provides a simple and intuitive way to visualize, analyze, and access/download vast amounts of Earth science remote sensing data. For a more complete description, see http://giovanni.gsfc.nasa.gov/.yotc_example_picture3

YOTC-GS provides access to Level 2 (i.e. swath level data) and/or Level 3 (i.e. gridded/mapped data) forms of satellite data, the choice – or both – depending on what is appropriate and relevant. The former is needed and better suited for detailed process examination and the latter is needed and more well suited for examination of phenomena, conditions and processes on large to global scales, and for comparisons to global model analyses, prediction and simulation output.

 

YOTC Giovanni System for Level 3 is a web-based graphics and analysis tool to explore Level 3 data products easily and quickly.  

YOTC Giovanni System for Level 2 is a web-based graphics and analysis tool to explore Level 2 data products easily and quickly.

Giovanni provides what the international Committee on Earth Observation Satellites (CEOS) Working Group on Information Systems and Services (WGISS) refers to as “data democracy.” This term implies that data is available to all users in a standard, easy-to-implement format that does not presuppose prior experience or substantial resources. Anyone with a Web browser can access NASA satellite data through Giovanni without downloading any special software. There is no need to learn arcane data formats to retrieve and process data, and the subsetted data can be downloaded in a variety of common formats. All the statistical analysis is done via a regular web browser. Giovanni allows for equal access by established research establishments and users new to satellite data alike.

 

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Latest News

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The impact of dust on the Mediterranean Basin is just one of many subjects researched with the aid of the Giovanni data visualization and analysis system.    (MODIS Terra image, February 25, 2006, courtesy NASA Visible Earth).
Jan 15, 2013 - Giovanni publication count for 2012 exceeds previous year

Broad diversity of uses for NASA data visualization and analysis tool seen in most recent compilation

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A new capability is being developed that will allow users to obtain maps and time series of precipitation for a specific country.
Jan 04, 2013 - Four presentations at the American Meteorological Society 93rd Annual Meeting from the NASA GES DISC

Presentations describe support for precipitation, weather model and climate model data

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Data partnerships and collaborations were the subject of several presentations by the NASA GES DISC at the AGU 2012 Fall Meeting.
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Collaborations and data partnerships on hydrology, aerosols, precipitation, data preservation, and data assimilation described

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Image derived from AMSR-E data showing the sea ice minimum extent in summer 2007, subject of a research paper using Giovanni. Sea ice extent is approaching this record minimum extent in August 2012. (Image from NASA Earth Observatory)
Aug 24, 2012 - Science use of Giovanni increasing in 2012

Giovanni used across a wide spectrum of research topics

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Last updated: Aug 05, 2014 09:53 AM ET