visualization of a new generation of climate simulations with avizo green
DESCRIPTION
By Michael Böttinger (DKRZ - Deutsches Klimarechenzentrum, German Climate Computing Center)TRANSCRIPT
![Page 1: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/1.jpg)
Visualization of a new generation of climate
simulations with Avizo Green
Michael BöttingerDeutsches KlimarechenzentrumGerman Climate Computing Center
1
Michael Böttinger, DKRZ
![Page 2: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/2.jpg)
Michael Böttinger, DKRZ
2
DKRZ – who we are High Performance Computing Center National Service Facility for Climate- and Earth System
Research Limited (non for profit) Company (Shareholder: MPG: 53%,
University HH: 27%, AWI: 10%, HZG: 10%)
![Page 3: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/3.jpg)
Michael Böttinger, DKRZ
• IBM "Power6“: 264 Nodes • 8448 Cores• 158 TeraFlops (sustained)• System memory 20 TByte
• Infiniband Interconnect (4xDDR)
• 6 PByte GPFS file system
• Optimized for Climate Modeling
• >100 PByte Archive Capacity
Top500 (06/2009): Rank 27
High Performance Computing
3
Top500 (09/2011): Rank 98
![Page 4: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/4.jpg)
Michael Böttinger, DKRZ
4
The Climate System
![Page 5: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/5.jpg)
Michael Böttinger, DKRZ
Conservation Laws (Momentum, Energy, Mass) State Equations Radiation Boundary Conditions: i.e. Earth Geometry,
Astronomical Parameters, Distribution of Land and Sea
Differential Equations
5
Atmosphere Model
![Page 6: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/6.jpg)
Michael Böttinger, DKRZ
Atmosphere Models
6
... approximate solution: finite differences method
using a 3D-computational grid
![Page 7: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/7.jpg)
Climate Models – Data Structures◦ Georefererenced data -> Mapping◦ Relatively coarse 3D grids, some quantities only 2D◦ Grids: rectilinear, curvilinear, rotated, irregular …◦ Multivariate / scalar and vector fields◦ Special values◦ Time axis: very long time series◦ Coupled models: distinct grids◦ Multi run experiments (ensembles)
Michael Böttinger, DKRZ
![Page 8: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/8.jpg)
Michael Böttinger, DKRZ
8
MomentumEnergyWater
Land Surface
Coupler
Sun Atmosphere
Ocean
concentrations(GHG, SO4)
Source: MPI-M
A coupled climate model
![Page 9: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/9.jpg)
Michael Böttinger, DKRZ
Scenarios forenergy production,
land use, etc.Emission scenarios
for CO2
and othergases/aeros.
Carbon Cycle ModelChange in the
concentration ofCO2 and other
gases/aeros.
Climate ModelClimate change(Temperature,
Precipitation,…)
IPCC AR4 / CMIP3
9
?
![Page 10: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/10.jpg)
Earth System Model
Michael Böttinger, DKRZ
10
Atmosphere
Vegetation / Land
Ocean: Physics Biogeochem.
Coupler
![Page 11: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/11.jpg)
Simulations performed by DKRZ 2010/2011
Earth System Model MPI-ESM: land biosphere, ocean-
biogeochemistry (developed by MPI-M)
Computational demand: factor 60 compared to IPCC AR4
13 000 simulated model years
Results: 650 TB raw data, 60 TB in ESG
Simulations for CMIP5 / IPCC AR5
Michael Böttinger, DKRZ
11
![Page 12: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/12.jpg)
Base experiments
◦ e.g. the recent history historical 1850 to 2005.
Projections (Scenarios)
◦ 2005 to 2100, and 2005 to 2300, 3 different scenarios
Decadal climate forecasts
Role of the carbon cycle with respect to climate change
Long history
◦ e.g. the time 850 to 1850 or the last glacial maximum
CMIP5 Experiments with MPI-ESM
Michael Böttinger, DKRZ
12
![Page 13: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/13.jpg)
Michael Böttinger, DKRZ
IPCC AR5 SimulationsIntroduction: RCP Scenarios
RCP = Representative Concentration Pathways
13
![Page 14: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/14.jpg)
Michael Böttinger, DKRZ
IPCC AR5 SimulationsIntroduction: RCP Scenarios
14
![Page 15: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/15.jpg)
Michael Böttinger, DKRZ
IPCC AR5 SimulationsProjected Temperature Changes
15
![Page 16: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/16.jpg)
Michael Böttinger, DKRZ
IPCC AR5 SimulationsProjected Temperature Changes
16
![Page 17: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/17.jpg)
Michael Böttinger, DKRZ
17
Ensemble Mean Temperature Change relative to 1986-2005
![Page 18: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/18.jpg)
Michael Böttinger, DKRZ
18
![Page 19: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/19.jpg)
Michael Böttinger, DKRZ
19
![Page 20: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/20.jpg)
Michael Böttinger, DKRZ
20
Simulated Sea Ice Concentration for September (blue) and March (white)
![Page 21: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/21.jpg)
Michael Böttinger, DKRZ
21
![Page 22: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/22.jpg)
Michael Böttinger, DKRZ
22
Simulated Sea Level Change (without possible contributions of land ice)
![Page 23: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/23.jpg)
Michael Böttinger, DKRZ
23
![Page 24: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/24.jpg)
Michael Böttinger, DKRZ
24
![Page 25: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/25.jpg)
Michael Böttinger, DKRZ
25
![Page 26: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/26.jpg)
Michael Böttinger, DKRZ
26
![Page 27: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/27.jpg)
Information and Data Access
Michael Böttinger, DKRZ
27
Earth System Grid
IS-ENES Data Access
http://www.dkrz.de/Klimaforschung/konsortial/ipp-ar5/
![Page 28: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/28.jpg)
STORM is a consortium effort aiming at multi-century climate
change integrations with a high resolution climate model
Beyond IPCC AR5 simulations
Michael Böttinger, DKRZ
28
![Page 29: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/29.jpg)
Michael Böttinger, DKRZ
29
1/10 Deg MPI-OM
![Page 30: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/30.jpg)
Michael Böttinger, DKRZ
30
![Page 31: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/31.jpg)
Avizo with domain specific extensions, i.e.
NetCDF CF-1.0 Reader◦ supports regular, rectilinear, rotated, curvilinear and irregular grids◦ Long time series: streaming for time dependent data◦ Caching in memory
Map Projections◦ Cylindric Equidistant, Spherical, Mollweide etc.
„Earth“ Module◦ Textures, LOD techniques◦ Topography / Bathymetry◦ Continental and political Outlines
HW-based Bump Shading for 2D Slices Vector Vis Methods Volume Rendering for rectilinear grids
Michael Böttinger, DKRZ
Avizo Green
![Page 32: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/32.jpg)
High visual quality of the resulting imagery
(relatively) easy to use.
DKRZ contributions to Avizo Green:
◦ Avizo Green Tutorial (see http://www.dkrz.de/Nutzerportal-
en/doku/halo/sw/avizo/avizo)
◦ Enhanced modules, i.e. DKRZ-Earth, BumpSliceDOI (under development)
Next generation climate model: unstructured grid -> developed for
DKRZ, now included in Avizo7 (funded by DKRZ and MPI-M)
More stability needed
Scalability: Performance problems with large grids
Status and Challenges
Michael Böttinger, DKRZ
32
![Page 34: Visualization of a new generation of climate simulations with Avizo Green](https://reader033.vdocument.in/reader033/viewer/2022052907/559362521a28abba478b4650/html5/thumbnails/34.jpg)
MPI-ESM LR: T63L47/GR15L40
◦ Atmosphere: horizontally ~200 km, 47 height levels (up to 80 km
height)
◦ Ocean: variable resolution between 12 and 150 km, 40 depth levels
MPI-ESM MR: T63L95/TP04L40
◦ Atmosphere: horizontally ~200 km, 95 height levels (up to 80 km
height)
◦ Ocean: variable resolution at 0.4° (~40 km), 40 depth levels
Model Configurations
Michael Böttinger, DKRZ
34