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Data

Live Data

Explore real-time raw data streams and historical archives from our deployed observation stations in Nepal.

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Demonstration data — readings shown here are generated by a physics-based diurnal simulator while field hardware is being deployed. Real station data will replace this automatically when instruments come online. Learn about HICS →
Active stations
DLP-001 · ● Active
CMS Thermal Monitor
Dho Tarap, Dolpo · 4000m
29.0469°N 82.9481°E
Latest JSON Download CSV
KTM-001 · ● Active
Kathmandu Central Station
Kathmandu · 1350m
27.6915°N 85.3205°E
Instrument Details Latest JSON Download CSV
Altitude gradient comparison

HICS's central mission: measure how atmospheric conditions change across Nepal's 60m–8,848m altitude gradient. This comparison shows the contrast between transboundary pollution concentrated in the valley and pristine high-altitude air.

2,650m
altitude difference
KTM-001 (1,350m) ↔ DLP-001 (4,000m)
~14×
PM2.5 ratio
urban valley vs. remote high-altitude
~14°C
temperature difference
valley (25°C) vs. alpine (11°C)
15 µg/m³
WHO PM2.5 24h guideline
KTM-001 typically 4–5× above this
Temperature (°C) — KTM-001 vs DLP-001
PM 2.5 (µg/m³) — KTM-001 vs DLP-001 · WHO guideline: 15 µg/m³ (dashed)
Diurnal temperature cycle (48h average by hour)

Shows average temperature for each 3-hour window of the day. The diurnal pattern is critical for both building performance research and atmospheric modelling. Valley (KTM) peaks in the afternoon; alpine site (DLP) shows a flatter, cooler profile.

DLP-001 — CMS Thermal Monitor (4000m)
KTM-001 — Kathmandu Central Station (1350m)

Times shown in local browser timezone. Data averaged over 48 hours.

24-hour time series

DLP-001 — CMS Thermal Monitor Dho Tarap, Dolpo · 4000m

Temperature (°C)
Humidity (% RH)
Pressure (hPa)
PM 2.5 (µg/m³)

Sensor accuracy: ±0.5°C · ±2% RH · ±0.1 hPa · ±10% PM2.5 · Data posted every 15 minutes.

KTM-001 — Kathmandu Central Station Kathmandu · 1350m

Temperature (°C)
Humidity (% RH)
Pressure (hPa)
PM 2.5 (µg/m³)

Sensor accuracy: ±0.5°C · ±2% RH · ±0.1 hPa · ±10% PM2.5 · Data posted every 15 minutes.

Data Citation

How to cite this data

HICS environmental data is freely available under CC BY 4.0. Attribution is required for any publication, report, or project that uses this data.

Himalayan Institute for Contextual Sciences (HICS). (2026). Environmental telemetry dataset — KTM-001 Kathmandu atmospheric monitoring station. Retrieved from https://himalayansciences.org/data/ Licence: CC BY 4.0.
Download CSV (KTM-001) → | Latest JSON → | PANGAEA submission in preparation

API Reference

You can access real-time JSON data at /api/data/latest/ and download CSV records at /api/data/download/.

Endpoints Full API Documentation →
Endpoint Purpose
/api/stations/ All stations & status (public JSON)
/api/data/latest/?station=KTM-001 Latest reading (public JSON)
/api/data/historical/?station=KTM-001&hours=24 Time series (public JSON, max 720 hours)
/api/data/download/?station=KTM-001 CSV download · CC BY 4.0 licence