Section

  • Général

     

                                                                               

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    Welcome to the Training Course on

    The Use of Satellite Data for Climate Services in Europe

    Online Phase: 28 January - 8 February 2019

    Classroom Phase: 25 February - 1 March 2019, Krakow, Poland

    This 2 weeks online phase is designed for you to:

    • study the concept of satellite based climate monitoring
    • get an overview of the satellite based climate data we will be working with in the classroom
    • learn where an how to access/download these data
    • to prepare your laptop for the classroom by installing software tools will be working with in the classroom
    • to get an impression on these software tools by working through the tutorials and excercises provided
    • define the mini project you will work on during the classroom phase. This will be done in close collaboration with the course instructors.

    This is a self learning environment, which allows you to learn at your own speed! However, there are several life sessions where you can discuss questions with the instructors and your course mates. Feel free to join in! Besides that, you can use the course forum at any time to get in touch with course mates, instructors and discuss questions and comments.

    Most of the content provided in this online course is to read and to watch/listen. There are 8 active tasks/exercises you are expected to do during this online phase. They are highlighted in red.

    Besides these tasks you can check what you have learned about the concept of satellite based climate monitoring in the Quiz that is provided in section 8.

    After you have worked through the content of this online phase, you should be able to:

    • discuss why climate monitoring is important and why satellites play an increasing role
    • explain the difference between Environmental Data Records, Fundamental Data Records and Thematic Climate Data Records
    • browse through the catalogue of available data from the following SAF's: Climate Monitoring (CM SAF); Land Surface Application (LSA SAF) and Atmospheric Composition (AC SAF)
    • order and download CM SAF and LSA SAF and AC SAF  data
    • get help in case of questions on the CM SAF and LSA SAF and AC SAF  data
    • present the idea of your mini project, that you will be working on during the classroom phase

    Enjoy the online phase and use it to prepare yourself for the classroom - the better you prepare, the more you will get of the classroom phase!

    Please do not hesitate to contact the course instructors and/or use the course forum in case of questions.

    We are looking forward to working with you!

    Christine (course lead)

    Steffen (CM SAF and CM SAF R Toolbox expert)

    Carla and Célia (LSA SAF experts)

    Anu-Maija  (AC SAF expert)

    Roger and Danny (R-Instat experts)

    Federico (AC SAF and Climate Data Store expert)

     

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  • 1

    Satellite-based Climate Data

    In the context of climate monitoring, climate data are collected to

    1. document the status of the climate system and
    2. classify the current state of the climate system in the long term. In this section you find background information on climate data and, more specifically, on those climate data that can be derived from satellite observations.

    Several sources of satellite-based climate data are available:

    These data are made available free of charge.

    The presentations below provide you with information about

    • the concept of Essential Climate Variables
    • the retrieval of geophysical variables from satellite measurements, based on the examples of solar irradiation
    • the concept of
      • (thematic) climate data records ((T)CDR's)
      • operational / environmental data records (EDR's) / interim climate data records (ICDR's)
      • fundamental climate data records (FCDR's)
        as used in the context of the CM SAF
    • the CM SAF and what it does
  • 2

    CM SAF provides (long term) climate data sets and operational (near real time) climate products for different climate variables. This section provides you with an overview on what is available from the CM SAF and how to order CM SAF data. For more information please refer to the CM SAF web user interface (http://wui.cmsaf.eu).

  • 3

    This section provides information on the data formats and software tools to work with CM SAF data. To best prepare for the classroom session and to save as much time for practical work as possible, please work through the content of this section carefully. Follow the instructions and install all software tools described here. If you need support from your local IT administrator (admin rights on the laptop you bring to the course, etc.), please contact this person before you come to the classroom. Software issue related to admin rights cannot be solved during the classroom phase!

    Please install the following software tools before coming to the classroom:

    Installation instructions and further information about these tools are provided below.

    Please use the forum if you have questions on the installation of the software. In case of issues with admin rights etc. regarding the laptop you will be using at the workshop, please contact your local administrator.

  • 4
  • 5

    EUMETSAT's Satellite Application Facility for Land Surface Applications (LSA SAF) provides satellite derived parameters about the Land Surface, such as Land Surface Temperature, evapotranspiration, vegetation related parameters and information on fire activity. In this section you will learn about LSA SAF parameters that might be interesting for climate applications and how to access LSA SAF data.

  • 6

    This section provides information on the data formats and software tools to work with LSA SAF data. To best prepare for the classroom session and to save as much time for practical work as possible, please work through the content of this section carefully. Follow the instructions and install all software tools described here. If you need support from your local IT administrator (admin rights on the laptop you bring to the course, etc.), please contact this person before you come to the classroom. Software issue related to admin rights cannot be solved during the classroom phase!

    Please install the following software tools before coming to the classroom:

     

    Installation instructions and further information about these tools are provided below.

    Please use the forum if you have questions on the installation of the software. In case of issues with admin rights etc. regarding the laptop you will be using at the workshop, please contact your local administrator.

    If you have trouble downloading the software, due to poor internet connection - don't worry, we will bring hard disks to the classroom with everything you need.

  • 7
  • 8

    To assess what you have learned so far, we will provide you with a quiz later this week.

  • 9

    The main objectives of Atmospheric Composition SAF (AC SAF, https://acsaf.org/index.html)  is to process, archive, validate and disseminate near real-time (NRT) data products, including e.g. total columns of different trace gases such as nitrogen dioxide (NO2), ozone (O3) and sulphur dioxide (SO2), tropospheric column of NO2, UV-radiation, aerosol index as well as ozone profiles. Important applications of AC SAF data are e.g. monitoring global air quality or UV-radiation reaching the Earth's surface. In this section you will learn about AC SAF data records, what kind of studies they are useful for, and how you can access the data. 

    AC SAF data records

    AC SAF provides Level 3 Data Records of selected variables (https://acsaf.org/datarecord_access.html). For this course Data Records of NO2 and water vapour are used. 

    Both parameters are retrieved from GOME-2 instrument onboard Metop-A and Metop-B satellites. Both Data Records are stored as global monthly means. The file format is NetCDF. 

    Product Algorithm version Satellite Availability
    Level 3 NO2 1.0

    Metop-A

    02/2007- 08/2017
    Level 3 NO2  1.0 Metop-B

    01/2013-08/2017

    Level 3 H2O 1.0 Metop-A

    02/2007-08/2017

    Level 3 H2O 1.0 Metop-B

    01/2013-08/2017

  • 10

    Visualising and handling AC SAF data records

    There are several ways to visualise AC SAF data records. The easiest way is to use Panoply, where you can visualise one file at the time. The AC SAF data records are stored as monthly mean files. In  monthly mean netCDF NO2 files there are variables 

    • "latitude": 1d vector (length 720). Values range from -89.75 to 89.75 at 0.25 deg steps
    • "longitude": 1d vector (length 1440). Values range from -179.75 to 179.75 at 0.25 deg step
    • "PRODUCT/NO2trop", Tropospheric NO2 column content,  2d matrix (1440x720). Values are given in molec/cm-2
    • "PRODUCT/NO2trop_err"; error associated with NO2trop, 2d matrix (1440x720)

    In monthly mean  H2O files there are variables 

    • "latitude": 1d vector (length 360). Values range from -89.5 to 89.5 at 0.5 deg steps
    • "longitude": 1d vector (length 720). Values range from -179.5 to 179.5 at 0.5 deg step
    • "PRODUCT/tcwv", Total column water vapour content,  2d matrix (720x360). Values are given in kg/m-2
    • "PRODUCT/tcwv_err"; error associated with tcwv, 2d matrix (720x360)

     

    • 11
    • 12

                     

      Climate Data Store is the access to the climate information of the Climate Change Copernicus Service (C3S) implemented by ECMWF.

      The CDS collects datasets for all Climate Essential Climate Variables for:

      • Satellite
      • Reanalysis
      • In-situ (on-going)
      • In addition CDS provide access to the seasonal forecast datasets and climate projections

      The access to the data  is free upon registration

      Tutorials are available in the C3S Learning zone upon registration.

      Note that:

      Most datasets can be retrieved in NetCDF format. If you download data from the CDS, we strongly advise to chose NetCDF.

      ERA5 Reanalyis is the new generation of reanalysis from ECMWF and are available through the CDS as hourly data. A careful check of the expected size is then necessary.

      One way is to extract them via the toolbox - here a python routine to upload in the toolbox for global 2m temperature

    • 13

      Most of the time during the classroom will be reserved for working on your own mini project.

      Now that you have learned about the data and software tools, please think about a small project that you would like to work on during the classroom. If you would like to combine gridded satellite data and station data, you are welcome to bring station data to the classroom.

       

      •  Mini-project forum
        Accès restreint Non disponible à moins que : Vous soyez membre de The Climate Monitoring SAF - Workshop Group
    • 14

      In this section you find logistic information for the classroom phase.

      We also collect material that is used during the classroom phase and upload it here. This section will be updated throughout the course.

      •  Classroom Forum
        Accès restreint Non disponible à moins que : Vous soyez membre de The Climate Monitoring SAF - Workshop Group
      • Accès restreint Non disponible à moins que : Vous soyez membre de The Climate Monitoring SAF - Workshop Group
      •  Classroom Agenda, Status: 13 February 2019 Fichier
        Accès restreint Non disponible à moins que : Vous soyez membre de The Climate Monitoring SAF - Workshop Group
      •  Course Photos Dossier
        Accès restreint Non disponible à moins que : Vous soyez membre de The Climate Monitoring SAF - Workshop Group
      •  Participants Presentations Dossier
        Accès restreint Non disponible à moins que : Vous soyez membre de The Climate Monitoring SAF - Workshop Group