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Certificate 2025 Spring Phenology campaign

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Certificate 2025 Spring Phenology campaign

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Cultural exchange Marcallo Karlovac FINAL

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Here is the shared presentation at the GLOBE Europe and Eurasia webinar on June 2nd, 2025

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Meet and learn together with GLOBE - Final

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Certificate 2025 Spring Phenology Campaign

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Certificate 2025 Spring Phenology Campaign

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Christmas customs _ Croatia

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Hystory of town Karlovac

3.th online meeting

Christmas customs in Croatia and Italy

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Croatian students' visit to Marcallo, May 26th, 2025

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Croatian students' visit to Marcallo, May 26th, 2025

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Thank you so much for the wonderful day spent together!

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https://vis.globe.gov/GLOBE/popUpContents.jsp?site_id=47617&current_date=2025-05-21

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https://vis.globe.gov/GLOBE/popUpContents.jsp?site_id=47617&current_date=2025-05-21

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The Global Learning and Observations to Benefit the Environment (GLOBE) Program is a worldwide hands-on, science and education program focusing on the environment, now active in over 120 countries worldwide

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May 20 th 2025 - Festival STEM - workshop ElementaryGLOBE

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May 20 th 2025 - Festival STEM - workshop ElementaryGLOBE

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The students hold the workshoop for preschool and early school age

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Workshop: estimating tree circumference, tree height

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May 7th 2025 - leaves dont grow any more

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May 7th 2025 - leaves dont grow any more

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Current air temperature: 17 C

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leaf 1: 79 mm, leaf 2: 51 mm, leaf 3: 52 mm, leaf 4: 55 mm

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May 7th 2025 - leaves dont grow any more

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May 7th 2025 - leaves dont grow any more

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leaf 1: 55 mm, leaf 2: 58 mm, leaf 3: 66 mm, leaf 4: 57 mm

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May 7th 2025. - leaves dont grow any more

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May 7th 2025. - leaves dont grow any more

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leaf 1: 61 mm , leaf 2: 45 mm , leaf 3: 42 mm , leaf 4: 44 mm

current air temperature; 22 C

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April 1 st - first bloom

April 15th - full bloom

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Budburst

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At 13:00 air temperature is 22 degrees Celsius, humidity 60%; light warm wind from south.

Cloud cover: broken, mainly high cirrustratus clouds

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Our last observation on the hazel tree:

Leaf n.1: 88 mm

Leaf n.2: 57 mm

Leaf n.3: 50 mm

Leaf n.4: 97 mm

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Today, at 11:00 a.m., air temperature is comfortable, 21 degrees Celsius; air humidity 64%; light wind from south. The sky is completely clear.

Our birch is full of leaves!

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Leaf n.1: 59 mm

Leaf n.2: lost

Leaf n.3: lost

Leaf n.4: 65 mm

Leaves have just stopped growing; let’s see the final growing chart!

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Our hazel, with plenty of large leaves!

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Leaf n.1: 88 mm

Leaf n.2: 57 mm

Leaf n.3: 50 mm

Leaf n.4: 97 mm

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Today at 12.00 air temperature is 16 degrees Celsius, humidity 68%, with light wind. Cloud cover is broken, with low clouds.

Last days we had bad weather, with frequent showers and thunderstorms; today the weather is getting better.

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Leaf n.1: 59 mm

Leaf n.2: lost

Leaf n.3: lost

Leaf n.4: 64 mm

Our birch has slow down its growth.

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May 5th 2025.   Birch                                1st Leaf 2cm.                                  2nd leaf  2cm                                           3th Leaf 4.8  cm                                       4th Leaf 5 cm

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A new "tree height campaign" has started, with students of 7th grade!

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Our hazel with a thick canopy by now

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Leaf n.1: 88 mm

Leaf n.2: 58 mm

Leaf n.3: 50 mm

Leaf n.4: 98 mm

Leaves n.1-2-3 have stopped growing. Leaves n.2-3 are shorter, because they are shaded by the nearby other ones.

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After many rainy days during Easter holidays, the weather has competely changed and we have rather warm days.

Today, at 13:00, air temperature is 23°C, humidity 59%, high pressure and light wind from south. No clouds in the sky

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Leaf n.1:58 mm

Leaf n.2: lost

Leaf n.3: lost

Leaf n.4: 63 mm

We've not been lucky in choosing the branch for green up observations: two leaves got lost, and the nearby branches have longer leaves. We've chosen the same barnch we observed in green down observations last Autumn.

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leaf 1: 79 mm, leaf 2: 51 mm, leaf 3: 52 mm, leaf 4: 55 mm

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leaf 1: 50 mm, leaf 2: 42 mm, leaf 3: 45 mm, leaf 4: 48 mm

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leaf 1: 40 mm, leaf 2: 25 mm, leaf 3: 33 mm, leaf 4: 35 mm

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leaf 1: 20 mm, leaf 2: 15 mm, leaf 3:17 mm, leaf 4: 21 mm

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leaf 1: 46 mm, leaf 2: 50 mm, leaf 3: 50 mm, leaf 4: 50 mm

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leaf 1: 38 mm, leaf 2: 40 mm, leaf 3: 41 mm, leaf 4: 40 mm

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leaf 1: 18 mm, leaf 2: 24 mm, leaf 3: 26 mm, leaf 4: 25 mm

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leaf 1: 9 mm, leaf 2: 11 mm, leaf 3: 15 mm, leaf 4: 13 mm

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leaf 1: 43 mm, leaf 2: 44 mm, leaf 3: 41 mm, leaf4: 42 mm

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leaf 1: 40 mm, leaf 2: 41 mm, leaf 3: 34 mm, leaf 4: 41mm

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leaf 1: 23 mm, leaf 2: 25 mm, leaf 3: 21 mm , leaf 4: 22 mm

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leaf 1: 15, leaf 2: 19, leaf 3: 14, leaf 4: 15

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Presentation created by students of 3^A and 3^B classes

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The sky is overcast, with stratus clouds.

At 12:00 air temperature is 13°C, humidity 89%.

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Leaf. n.1: 51 mm

Leaf n.2: 23 mm

Leaf n.3: lost

Leaf n.4: 61 mm

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At 12:00 air temperature is 16°C, humidity 87%. Cloud cover: overcast (stratus clouds). It's a windy day, with some showers.

Hazel leaves are growing fast:

Leaf n.1: 86 mm

Leaf n.2: 58 mm

Leaf n.3: 50 mm

Leaf n.4: 95 mm

Leaf n.2-3 seem to have slowed down their growth: they are hidden from other larger leaves and one of them appears without its tip (maybe eaten by any insect...)

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Our hazel today

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It’s a sunny and warm day in Marcallo, air temperature at 11:00 is 17 degrees Celsius, humidity 58%, with light Wind.

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Today, at 12:00, air temperature is 17°C, humidity 62%. Cloud cover: broken (50-90%), with cirrus and altocumulus clouds.

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Leaf n.1: 67 mm

Leaf n.2: 55 mm

Leaf n.3: 50 mm

Leaf n.4: 87 mm

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Leaf n.1: 37 mm

Leaf n.2: 17 mm

Leaf n.3: lost

Leaf n.4: 55 mm

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Hazel leaves grow very fast!

Leaf n.1: 57 mm

Leaf n.2: 45 mm

Leaf n.3: 46 mm

Leaf n.4: 63 mm

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Our birch today, with some green leaves!

At 1:00 p.m. air temperature is 18°C, humidity 53%, moderate wind is blowing.

The sky is broken (50-90%), with cirrostratus clouds.

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New leaves begin to grow, at last!

We were waiting for them impatiently!

Leaf n.1: 16 mm

Leaf n.2: budburst

Leaf n.3: 9 mm

Leaf n.4: 35 mm

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19.6 degrees

43% humidity

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7.4 degrees

93% humidity

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9.3 degrees

58% humidity

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14.6 degrees

36% humidity

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7.4 degrees

93% humidity

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9.8 degrees

66% humidity

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10.2 degrees

87 % humidity

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4.8 degrees

81% humidity

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13.7 degrees

74% humidity

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9.3 degrees

58% humidity

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14.6 degrees

36% humidity

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10.2 degrees

66z humidity

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19.6 degrees

43% humidity

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7.4 degrees

93%humidity

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4.8 degrees

81% humidity

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13.7 degrees

71% humidity

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Leaves are growing fast!

Leaf n.1: 34 mm

Leaf n.2: 34 mm

Leaf n.3: 31 mm

Leaf n.4: 25 mm

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Spring has come and some small leaves can be seen on our birch...

Our observed branch is awakening slowly, instead..

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Today it's sunny, at 12:00 air temperature is 18°C, humidity 47%. Cloud cover is broken (50-90%), with high clouds.

We can measure only leaf. n.1 (10 mm); the other three buds are still swelling.

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leaf 1. 11 mm, leaf 2: 9 mm, leaf 3: 11 mm, leaf 4: 12 mm

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leaf 1: 6 mm, leaf 2: 7 mm, leaf 3: 6 mm, leaf 4: 6mm

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leaf1: 7mm, leaf 2.:8, leaf 3: 7mm, leaf 4.: 6 mm

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Our hazel tree with some new small leaves!

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Budburst: March 8th

Lenght measurement on March 17th, 2025:

Leaf 1: 19 mm

Leaf 2: 16 mm

Leaf 3: 14 mm

Leaf 4: 12 mm

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leaf 1: 3 mm, leaf 2: 3 mm, leaf 3: 2 mm, leaf 4: 2 mm

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Budburst

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Sweling: February 26 th

Budbust: March 3rd

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Sweling: February 26th

Budburst : March 3rd

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Award_Primary school Dubovac, Croatia (1)

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Our birch tree, again without leaves. We’re wainting for budburst of all four buds…

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Today the weather is and slighty windy, no clouds are visibile in the sky.

At 12:00 temperature is 14 degrees Celsius, humidity 61%; pressure 1016 hPa.

We’ve observed budburst on bud n.4; the other there buds are swelling.

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Istituto Comprensivo Statale E. De Amicis, Marcallo con Casone

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Certificate 2024 Autumn Phenology Campaign

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Certificate 2024 Autumn Phenology Campaign

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Istituto Comprensivo Statale E. De Amicis - Marcallo con Casone

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All four buds are still dormant.

We've selected buds on the same branch that we observed in 2024 Autumn green down.

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The birch tree without leaves at the beginning of Spring Phenology Campaign.

All four buds are dormant.

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Today it's sunny and warm, no clouds in the sky.

At 12:00 air temperature is 14°C and humidity 54%; a light wind is blowing.

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All four buds on our observed branch have just started to swell. We can already see the tips of new leaves sprouting out...

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Our hazel tree without leaves.

At 12:00 air temperature is 5 °C, humidity 61% and cloud cover 100% (overcast).

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Here is our first observation of buds in Spring 2025!

We selected 4 buds on the same branch we observed during Autumn Phenology Campaign.

All four buds are almost ready to swell!