Ontologia

District · YEM

Sah

Yemen

BWhArid, desert, hot(100 %)

Species observed

54

Observations

115

Area

2 531,5km²

Ecological tissue

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

Species present

54 distinct species · 115 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

115 obs · 10 cellules
Obs. / cellule
≥ 33
33–32
24–32
9–23
< 9

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

25,8°C

Annual rain

72mm

Warmest m°

37,5°C

Coldest m°

11,2°C

Elevation: 953 m on average (min 704 m, max 1 136 m)

Bioclimatic detailsExpert
Annual mean temp.
25,8°C
Annual rain
72mm
Warmest month
37,5°C
Coldest month
11,2°C
Mean alt.
953m
Min
704m
Max
1 136m
Std. dev.
65m
Köppen-Geiger (dominant)
BWhArid, desert, hot(100 %)Arid

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

Soil & lithology

pH H₂O

8,0

Org. C

7,8g/kg

Clay

13,2%

Sand

46,0%

Silt

40,9%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
8,0
Org. C
8,1g/kg
Clay
12,5%
Sand
46,4%
Silt
41,2%
5–15 cm
pH H₂O
8,0
Org. C
7,4g/kg
Clay
12,5%
Sand
46,6%
Silt
40,9%
15–30 cm
pH H₂O
8,0
Org. C
8,1g/kg
Clay
14,5%
Sand
44,9%
Silt
40,6%

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

Land cover

Forest0.6%
Crops0.5%
Built-up0.0%
Bare soil91.4%
Other (grassland, water…)7.5%

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

Hydrology9 basins · 0 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

205,9km

Basins crossed

9

Max stream order

5

Max drainage

4 633km²

Discharge in basins

0,2m³/s

Mean precip.

86mm/an

Mean T°

21,8°C

Moisture idx

-0,94

Mean runoff

7mm/an

Mean elev. (basins)

970m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

1,0nW

Built-up

3,1%

Pesticides

0,1kg/km²

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