Crop damage assessment over Borgo Serraglio, Italy
How multispectral ultra-high-resolution drone imagery can assist in the detailed extraction of parcel-level scars left behind by a flood event.

Following a prolonged period of severe drought, the Italian region of Emilia-Romagna was hit by heavy rains between May 2nd and 3rd, 2023. The provinces of Bologna and Ravenna experienced particularly heavy rainfall, leading to overflowing rivers in Romagna. This resulted in widespread damage in the plains and sadly claimed the lives of two individuals.

On May 12th, the Metropolitan City of Bologna was struck by a cloudburst, causing minor floods. The lingering effects of the drought and persistent inclement weather prevented the soil from adequately draining. Then, on May 16th, another storm known as Storm Minerva battered the region with heavy rain continuously for nearly two days. As a result, twenty-three rivers throughout Emilia-Romagna overflowed, leading to devastating floods. Tragically, these floods caused the loss of fifteen lives.

Flood water on fields in Castel Bolognese, northern Italy, on May 18. Photographer: Michele Lapini/Bloomberg
Emilia-Romagna, being one of Italy's most fertile areas and accounting for a significant portion of the country's fruit harvest, faced the full impact of the catastrophic floods. The region is renowned as the largest producer of pears, peaches, nectarines, apricots, and plums, and is also the second-largest producer of cherries and kiwi.

The floods occurred after the land had been dried out by the preceding long and intense drought, greatly reducing its capacity to absorb water. This situation exacerbated the severity of the floods. The lack of precipitation in recent months had already significantly affected crops and the generation of hydropower energy. As a result, the reservoirs that store river water for hydroelectric plants dropped below historical minimum levels.

As a response to the situation, Cloudeo, in collaboration with Globhe, utilized ultra-high-resolution drone imagery with pixel sizes as small as 1 cm to extract detailed information about the scars left behind on specific crop fields by this extreme flood event. The drone was specifically ordered to acquire multispectral imagery, capturing Red, Near-infrared / NIR, Red Edge, and Green bands.


Flood water extent* over the Emilia-Romagna region as extracted from Sentinel-2 satellite imagery on 23rd May by the Cloudeo team. The study area where the drone imagery was acquired is within the red square.

Crop damage assessment

Cloudeo team processed and analyzed the multispectral drone data that were provided by Globhe. The analysis focused on three specified by the user parcels, and the results answer the questions: 

  • What is the level of damage caused by the flooding?

  • What is an estimation of the production loss due to the damage?

In the analysis-ready dataset, the unaffected crops per parcel are visualized with green colors, and the flooded areas (damages) are symbolized with blue color:


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The use of drone data in combination with satellite imagery provides valuable insights for accurate crop damage assessment, specifically in scenarios such as flooding events.

The ultra-high spatial resolution of 1cm provided by drones enables the detection of subtle changes in vegetation health, allowing for a precise understanding of the impact of flooding on crops. Not only do they enable the mapping of flooded zones, but also they provide an estimation of production loss at the parcel level with great precision.


Moreover, the timely availability of drone data is crucial for efficient damage assessment. Rapid deployment of drones enables faster response and mitigation efforts.

This information empowers farmers, farm associations, as well as insurers, and governmental institutions to make informed decisions, act faster, and implement effective strategies to minimize the impact of crop damage caused by an upcoming flooding event.

Did you like what you read? Download the Brief Report for the crop damage assessment over a selected area of the Emilia-Romagna region, taking advantage of the ultra-high-resolution drone data from Globhe:

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*Please note that the extracted areas have been generated using Copernicus Sentinel-2 data (acquired on 23 April and 23 May). Special thanks go to Globhe for the provision of drone imagery for the crop damage assessment analysis. To receive more information, please kontaktieren  Sie bitte unser Vertriebsteam.
Crop damage assessment over Borgo Serraglio, Italy
cloudeo Hellas PC, Anastasia Sarelli 28 Juni, 2023
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Juli 2023
Vorgestelltes Produkt: PlanetScope