Ontologia

District · YEM

Al Had

Yemen

BWhArid, desert, hot(98 %)

Species observed

0

Observations

0

Area

261,6km²

Partial data for this territory

Few observations recorded here. Real biodiversity is likely richer.

Ecological tissue

Not enough documented interactions to build a meaningful graph for this territory.

Species present

0 distinct species · 0 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

0 obs · 0 cellules

Aucune observation géoréférencée précise (<10 km) dans ce territoire.

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

18,9°C

Annual rain

554mm

Warmest m°

28,5°C

Coldest m°

9,3°C

Elevation: 1 967 m on average (min 1 172 m, max 2 283 m)

Bioclimatic detailsExpert
Annual mean temp.
18,9°C
Annual rain
554mm
Warmest month
28,5°C
Coldest month
9,3°C
Mean alt.
1 967m
Min
1 172m
Max
2 283m
Std. dev.
212m
Köppen-Geiger (dominant)
BWhArid, desert, hot(98 %)Arid

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

7,8

Org. C

19,1g/kg

Clay

29,4%

Sand

37,1%

Silt

33,6%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,8
Org. C
25,2g/kg
Clay
27,9%
Sand
38,4%
Silt
33,7%
5–15 cm
pH H₂O
7,8
Org. C
17,8g/kg
Clay
28,5%
Sand
37,5%
Silt
34,0%
15–30 cm
pH H₂O
7,9
Org. C
14,5g/kg
Clay
31,6%
Sand
35,4%
Silt
33,0%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest1.3%
Crops6.2%
Built-up0.3%
Bare soil31.1%
Other (grassland, water…)61.1%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology3 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

12,2km

Basins crossed

3

Max stream order

3

Max drainage

5 962km²

Discharge in basins

0,9m³/s

Mean precip.

286mm/an

Mean T°

18,4°C

Moisture idx

-0,82

Mean runoff

44mm/an

Mean elev. (basins)

1 848m

Watersheds crossing here

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

3hab/km²

Night light

0,1nW

Built-up

28,8%

Pesticides

0,7kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)