1.
Agro-climatic factors – a
puzzle piece in regional food
supplies forecasting
- final report on challenge #13 -
Pavel Hájek, Raitis Berzins, Jiří Valeš, Martin Pitoňák, Vincent
Onckelet, Tomáš Andrš, Veronika Osmiková, Ronald
Ssembajwe, Amit Kirschenbaum, Jörg Schliesser, Michal Kepka
& Karel Jedlička

2.
Paradox of contemporal agriculture

3.
Paradox of contemporal agriculture
• Transforming data in information, knowledge and wisdom (DIKW)
• Data are facts
• Information adds context by descriptions
• Knowledge adds structure
• Wisdom brings objective reasoning

4.
Paradox of contemporal agriculture
• Three steps of effective and sustainable crop cultivation:
• select the right crop for a particular place
• intervene in the field just in the very necessary cases
• intervene in an effective way, when intervening
Reasonable yield, whilst sustainable farming

5.
Our story
• a farmer examining
• a suitability of particular place
• for a particular plant
• using relevant data
• up to date technology

6.
Place

7.
Place described by agro-climatic factors

8.
Agro-climatic factors
• Temperature related
• frost-free periods
• growing degree units
• heat stress units
• number of (optimal) growing degree
days
• Soil temperature related
• nitrogen application window
• Incident sunlight related
• accumulated solar radiation
• Precipitation, evapotranspiration
and runoff related
• water balance

9.
Frost-free period

10.
Frost-freeperiod

11.
Growing degree units, days, heat stress

12.
Nitrogen application window

13.
Accumulated solar radiation

14.
Water balance
Precipitation
Water
absorbed by roots
Evaporation
Transpiration
Groundwater
recharge
Run off

15.
Plant

16.
Plant compared to Place
Models of a plant
• Ideal growth stages
• Growing degree units needed
• Solar exposure needed
• Water needed
• Nutrients needed
Agro-climatic factors
• Growing degree units
• Solar radiation
• Water balance
• Fertilization (nitrogen application)

17.
data

18.
ERA 5-Land data quality?
• annual temperature
uncertainty
• std. dev.= 0.03 °C.
• min = - 0.33 °C,
• max = 0.44 °C,

19.
ERA 5-Land data quality?

20.
ERA 5-Land data quality?
• Differences ERA5-Land
to in-situ sensor
• standard dev. = 1.06 °C
• min = −3.06 °C
• max = 3.8 °C.

21.
technology

22.
Technology used
• Algorithms available (bit.ly/agro-climatic-factors)
• EUXDAT e-infrastructure (test.euxdat.eu)
• Jupyter Notebooks, CDS, paralelization using HPC

23.
Frost free period calculation

24.
Agro-climatic factors visualization

25.
Thank you for listening our story of
• a farmer examining
• a suitability of particular place
• for a particular plant
• using relevant data
• up to date technology
On behalf the team
Karel Jedlička
UWB, WRLS
jedlicka.krl@gmail.com
https://app.hslayers.org/project-agro-climatic