In this monitoring phase, we are observing the maturation of potatoes, artichokes and the harvest season of vegetables. Meanwhile, the cereal zone has not yet started land preparations. According to the NDVI-based crop condition development graph, the conditions in Algeria were below the 5-year average throughout the whole monitoring period. 

The cumulative rainfall was 16 mm, which was 84% below average. The average temperature was 24.8°C. It was higher than the 15YA by 1.3°C, and the photosynthetically active radiation was 1351 MJ/m2 (3% above average). The potential biomass  indicates a negative departure (BIOMSS -20%) due to insufficient rainfall. The national maximum vegetation condition index (VCIx) was 0.51, while the cropped arable land fraction (CALF) was 11% below the 5YA. The national Crop Production Index (CPI) was 1.02. Radiation was 3% below 15YA.  

The NDVI spatial distribution shows that from July to October, crop conditions in 53.4% of the cropped areas were below the 5-year average (marked in orange). The blue marked regions (26.4% of the cropped areas), mainly located in the eastern region, experienced average crop conditions at the beginning and then recovered gradually to around below-average in the middle of August. The remaining cultivated areas all experienced below average crop conditions during the monitoring period. The spatial pattern of the maximum Vegetation Condition Index (VCIx) was in accord with the spatial distribution of the NDVI profiles. 

Figure.1 Phenology map

Figure.2 Crop condition development graph based on NDVI

Figure.3 Time series rainfall pofile

Figure.4 Time series temperature pofile

Figure.5 Maximum VCI

Figure.6 Spatial distribution of NDVI profiles

Figure.7 Potential biomass departure from 5YA

Figure.8 CPI over time in bulletin 3

Table.2: Country’s agroclimatic indicators by sub-national regions, current season's values and departure from 15YA, July – Oct. 2023

Table.2: Country’s agronomic indicators by sub-national regions, current season’s values and departure from 5YA, July – Oct. 2023