Microclimate Observation Dataset — Goa, India
Description
This dataset presents continuous microclimate observations recorded from a
personal weather station (PWS) located in Goa, India (15°35'38.1"N,
73°48'29.87"E, altitude 32 m ASL) on the western coastal belt of the Indian
subcontinent. The station records thirteen primary meteorological parameters
at each observation interval: outdoor air temperature (°C), relative humidity
(%), dew point temperature (°C), apparent temperature / heat index (°C), wind
direction (°), wind gust speed (m/s), mean wind speed (m/s), rainfall rate
(mm/h), relative atmospheric pressure (hPa), UV index, solar irradiance
(W/m²), indoor air temperature (°C), and indoor relative humidity (%).
From these base observations, twenty statistically significant derived
parameters are computed per record, including: saturation vapour pressure
(hPa), actual vapour pressure (hPa), vapour pressure deficit — VPD (kPa),
absolute humidity (g/m³), wet bulb temperature (°C), wet bulb globe
temperature — WBGT (°C, ISO 7243), Humidex, air density (kg/m³), wind power
density (W/m²), Beaufort scale classification, photosynthetically active
radiation — PAR estimate (μmol/m²/s), clearness index Kt, reference
evapotranspiration ET₀ (FAO-56 Penman-Monteith, mm/day), indoor–outdoor
temperature differential ΔT (°C), indoor–outdoor humidity differential ΔRH
(%), indoor–outdoor VPD gradient ΔVPD (kPa), indoor–outdoor absolute humidity
gradient ΔAH (g/m³), and a mould risk index.
Each daily record consists of two standard observations — one during the
day division (sunrise to sunset) and one during the night division (sunset
to sunrise) — taken approximately 8 hours apart. Reports are structured as
individual PDF files in the MCR-series (Microclimate Research Reports) format
and versioned sequentially.
The Goa coastal location enables study of tropical maritime microclimate
dynamics, pre-monsoon heat stress, land-sea breeze cycles, building thermal
performance, and Arabian Sea moisture incursion on India's west coast.
Observations are timestamped in IST (UTC+5:30). This dataset grows
continuously as a long-term record suitable for climatological trend analysis,
agricultural planning, public health research, and renewable energy assessment.
Station: Personal Weather Station with wireless outdoor sensor unit.
Data collection: Manual photographic observation + automated parameter
extraction and derivation using standardised meteorological formulae.
Coverage: April 2026 — ongoing.
Report format: MCR-series PDF, dual
Series information
Series Information
This record is part of the Microclimate Research Reports (MCR-Series),
a continuous observational dataset from a personal weather station at
Goa, India (15.5939°N, 73.8083°E, 32 m ASL). Each version corresponds
to one daily report comprising two standard readings — Day division
(sunrise to sunset) and Night division (sunset to sunrise) — taken
approximately 8 hours apart. Reports are numbered sequentially
(MCR-001, MCR-002, ...) and versioned on this record. The series
covers the pre-monsoon and monsoon seasons of 2026 onwards, with
planned long-term continuation. Primary focus areas include coastal
tropical heat stress, land-sea breeze dynamics, building thermal
performance, and Arabian Sea moisture incursion along the western
coast of India.
Methods
Observations are collected by manual photography of the personal weather
station display at scheduled intervals — one reading during the day division
(approximately 15:00–17:00 IST) and one during the night division
(approximately 22:00–24:00 IST), spaced approximately 8 hours apart.
Thirteen primary parameters are extracted directly from the display: outdoor
temperature, relative humidity, dew point, apparent temperature (heat index),
wind direction, wind gust speed, mean wind speed, rainfall rate, relative
atmospheric pressure, UV index, solar irradiance, indoor temperature, and
indoor relative humidity. Twenty derived parameters are subsequently computed
using the following standardised formulae: saturation vapour pressure via the
Magnus formula, actual vapour pressure from RH and SVP, vapour pressure
deficit (Buck 1981), absolute humidity via the ideal gas law, wet bulb
temperature (Stull 2011), wet bulb globe temperature approximation (ISO 7243),
Humidex (Masterton and Richardson 1979), air density from the equation of
state for moist air, wind power density (½ρv³), Beaufort scale classification,
PAR estimate from solar irradiance (×0.45×4.6), clearness index Kt, reference
evapotranspiration ET₀ (FAO-56 Penman-Monteith), indoor–outdoor differentials
for temperature, relative humidity, VPD and absolute humidity, and a mould
risk index based on indoor temperature and RH thresholds. Station coordinates
15°35'38.1"N, 73°48'29.87"E were verified by GPS. Altitude 32 m ASL. All
times in IST (UTC+5:30).
Other
Coordinates: 15°35'38.1"N, 73°48'29.87"E
Altitude: 32 m ASL
Time zone: IST (UTC+5:30)
Observation schedule: Two readings per day — Day division and Night
division, approximately 8 hours apart.
Derived parameters computed using: Magnus formula (SVP), Stull 2011
(wet bulb temperature), FAO-56 Penman-Monteith (ET₀), ISO 7243 (WBGT
approximation), Buck 1981 (VPD), Masterton & Richardson (Humidex).
New versions added with each subsequent daily report.
Copyright: Dr Nandkumar M Kamat, 2026.
Files
MCR-002_02Apr2026_0348.pdf
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(99.6 kB)
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