electricsheepafrica/africa-demographics-chad

Chad - Risk Assessment Indicators

Publisher: HeiGIT (Heidelberg Institute for Geoinformation Technology) · Source: HDX · License: cc-by-sa · Updated: 2026-04-13

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Abstract

This dataset provides comprehensive Risk Assessment Indicators for Chad, aggregated at admin level 2 and can in particular be used to perform a structured risk assessment for flood hazards. It includes demographic, environmental, infrastructure, accessibility, and hazard-related data to support disaster risk and resilience analysis.

All layers are derived from HeiGIT’s GAIA Pipeline, integrating open data sources such as WorldPop, OpenStreetMap, and Google Earth Engine based on HDX COD-AB boundaries.

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Data Overview

• Access to Services (TCD_ADM2_access)
• Facilities (TCD_ADM2_facilities)
• Coping Capacity (TCD_ADM2_coping)
• Demographics (TCD_ADM2_demographics)
• Rural Population (TCD_ADM2_rural_population)
• Vulnerability (TCD_ADM2_vulnerability)
• Flood Exposure (TCD_ADM2_flood_exposure)

 

 

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Indicator Descriptions

Access to Services (TCD_ADM2_access)

Represents the share of the population with access to key facilities within defined distances or travel times.

• ADM2_PCODE – Administrative division code (ADM2)
• access_pop_education_5km / 10km / 20km – Population within 5, 10, and 20 km of educational facilities
• access_pop_hospitals_30min / 1h / 2h – Population within 30 minutes, 1 hour, and 2 hours of a hospital
• access_pop_primary_healthcare_30min / 1h / 2h – Population within 30 minutes, 1 hour, and 2 hours of a primary health care facility

Data Source: openrouteservice (ORS)

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Facilities (TCD_ADM2_facilities)

Counts of essential service facilities within each district.

• ADM2_PCODE – Administrative division code (ADM2)
• education_count – Number of educational facilities
• hospitals_count – Number of hospitals
• primary_healthcare_count – Number of primary health care facilities

Data Source: OpenStreetMap (OSM)

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Coping Capacity (TCD_ADM2_coping)

Combines Access to Services and Facilities data to represent a district’s coping capacity.

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Demographics (TCD_ADM2_demographics)

Shows the population composition by age and gender.

• ADM2_PCODE – Administrative division code (ADM2)
• female_pop – Total female population
• children_u5 – Population under 5 years old
• female_u5 – Female population under 5 years old
• elderly – Population aged 65 and older
• pop_u15 – Population under 15 years old
• female_u15 – Female population under 15 years old

Data Source: Worldpop

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Rural Population (TCD_ADM2_rural_population)

Same demographic breakdown as above, but limited to rural populations. Rural areas are those outside urban extents, typically characterized by lower population density, agricultural or natural land use, and limited infrastructure compared to urban centers.

• ADM2_PCODE – Administrative division code (ADM2)
• female_pop_rural, children_u5_rural, female_u5_rural, elderly_rural, pop_u15_rural, female_u15_rural – Rural demographic counts
• rural_pop_perc – Percentage of total population living in rural areas

Data Source: Global Human Settlement Layer (GHSL)

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Vulnerability (TCD_ADM2_vulnerability)

Combines Demographics and Rural Population indicators.

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Flood Exposure (TCD_ADM2_flood_exposure)

Shows population and facility exposure to flooding at 30 cm depth for multiple return periods.

• ADM2_PCODE – Administrative division code (ADM2)
• female_pop_30cm, children_u5_30cm, female_u5_30cm, elderly_30cm, pop_u15_30cm, female_u15_30cm – Exposed population by group
• education_30cm_pct / count, hospitals_30cm_pct / count, primary_healthcare_30cm_pct / count – Facility exposure (percentage and count)

Data Source: The Joint Research Centre (JRC)

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QGIS Plugin Risk Assessment Inputs

• Coping Capacity = Access + Facilities
• Vulnerability = Demographics + Rural Population
• Exposure = Vulnerable Population + Facilities exposed to Floods

This dataset is part of HeiGIT’s Risk Assessment Indicator Collection on HDX. See more at HeiGIT on HDX and learn about HeiGIT’s research at HeiGIT.

We are happy to hear about your use-cases — contact us at communications@heigit.org!

Each row in this dataset represents tabular records. Data was last updated on HDX on 2026-04-13. Geographic scope: TCD.

Curated into ML-ready Parquet format by Electric Sheep Africa.

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Dataset Characteristics

Domain	Public health
Unit of observation	Tabular records
Rows (total)	70
Columns	16 (12 numeric, 4 categorical, 0 datetime)
Train split	56 rows
Test split	14 rows
Geographic scope	TCD
Publisher	HeiGIT (Heidelberg Institute for Geoinformation Technology)
HDX last updated	2026-04-13

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Variables

Geographic — access_pop_primary_healthcare_30min (range 0.0–1791204.0), access_pop_primary_healthcare_1h (range 0.0–1811340.0), access_pop_primary_healthcare_2h (range 0.0–1820215.0), primary_healthcare_count (range 0.0–35.0).

Demographic — access_pop_education_5km (range 0.0–1732970.0), access_pop_education_10km (range 0.0–1789030.0), access_pop_education_20km (range 0.0–1795985.0), access_pop_hospitals_30min (range 0.0–1792545.0), access_pop_hospitals_1h (range 0.0–1811288.0) and 1 others.

Outcome / Measurement — education_count (range 0.0–142.0), hospitals_count (range 0.0–45.0).

Identifier / Metadata — adm2_pcode (TCD0903, TCD1901, TCD1701), adm_pcode (TCD0903, TCD1901, TCD1701), esa_source (HDX), esa_processed (2026-04-27).

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Quick Start

from datasets import load_dataset

ds    = load_dataset("electricsheepafrica/africa-demographics-chad")
train = ds["train"].to_pandas()
test  = ds["test"].to_pandas()

print(train.shape)
train.head()

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Schema

Column	Type	Null %	Range / Sample Values
adm2_pcode	object	0.0%	TCD0903, TCD1901, TCD1701
access_pop_education_5km	int64	0.0%	0.0 – 1732970.0 (mean 43413.8286)
access_pop_education_10km	int64	0.0%	0.0 – 1789030.0 (mean 49795.0857)
access_pop_education_20km	int64	0.0%	0.0 – 1795985.0 (mean 59043.2714)
access_pop_hospitals_30min	int64	0.0%	0.0 – 1792545.0 (mean 54839.7143)
access_pop_hospitals_1h	int64	0.0%	0.0 – 1811288.0 (mean 82948.8714)
access_pop_hospitals_2h	int64	0.0%	0.0 – 1819460.0 (mean 151065.7714)
access_pop_primary_healthcare_30min	int64	0.0%	0.0 – 1791204.0 (mean 49544.5286)
access_pop_primary_healthcare_1h	int64	0.0%	0.0 – 1811340.0 (mean 82558.5714)
access_pop_primary_healthcare_2h	int64	0.0%	0.0 – 1820215.0 (mean 157166.0143)
education_count	int64	0.0%	0.0 – 142.0 (mean 5.7571)
hospitals_count	int64	0.0%	0.0 – 45.0 (mean 2.8)
primary_healthcare_count	int64	0.0%	0.0 – 35.0 (mean 2.3714)
adm_pcode	object	0.0%	TCD0903, TCD1901, TCD1701
esa_source	object	0.0%	HDX
esa_processed	object	0.0%	2026-04-27

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Numeric Summary

Column	Min	Max	Mean	Median
access_pop_education_5km	0.0	1732970.0	43413.8286	2375.0
access_pop_education_10km	0.0	1789030.0	49795.0857	3662.0
access_pop_education_20km	0.0	1795985.0	59043.2714	10544.0
access_pop_hospitals_30min	0.0	1792545.0	54839.7143	5169.0
access_pop_hospitals_1h	0.0	1811288.0	82948.8714	24620.0
access_pop_hospitals_2h	0.0	1819460.0	151065.7714	103316.0
access_pop_primary_healthcare_30min	0.0	1791204.0	49544.5286	3285.5
access_pop_primary_healthcare_1h	0.0	1811340.0	82558.5714	26540.5
access_pop_primary_healthcare_2h	0.0	1820215.0	157166.0143	98015.0
education_count	0.0	142.0	5.7571	2.0
hospitals_count	0.0	45.0	2.8	1.0
primary_healthcare_count	0.0	35.0	2.3714	1.0

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Curation

Raw data was downloaded from HDX via the CKAN API and converted to Parquet. Column names were lowercased and standardised to snake_case. Common missing-value markers (N/A, null, none, -, unknown, no data, #N/A) were unified to NaN. The dataset was split 80/20 into train and test partitions using a fixed random seed (42) and saved as Snappy-compressed Parquet.

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Limitations

• Data originates from HeiGIT (Heidelberg Institute for Geoinformation Technology) and has not been independently validated by ESA.
• Automated cleaning cannot correct for misreported values, definitional inconsistencies, or sampling bias in the original collection.
• Refer to the original HDX dataset page for the publisher's own methodology notes and caveats.

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Citation

@dataset{hdx_africa_demographics_chad,
  title     = {Chad - Risk Assessment Indicators},
  author    = {HeiGIT (Heidelberg Institute for Geoinformation Technology)},
  year      = {2026},
  url       = {https://data.humdata.org/dataset/chad---risk-assessment-indicators},
  note      = {Repackaged for machine learning by Electric Sheep Africa (https://huggingface.co/electricsheepafrica)}
}

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Electric Sheep Africa — Africa's ML dataset infrastructure. Lagos, Nigeria.