Solar & Daylight Data

Updated 2026-09-02

Solar Shading Design: Srinagar, India

How to research solar shading design for a specific site in Srinagar — the controlling authority, source documents, and checks to run before you rely on a number.

Last updated September 2, 2026 · Location data from the [GeoNames IN dump](https://download.geonames.org/export/dump/IN.zip) (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 1255634). Regulatory starting point: [Bureau of Indian Standards and the applicable state or urban local body](https://www.services.bis.gov.in/php/BIS_2.0/bisconnect/knowyourstandards/Indian_standards/isdetails/). Figures are illustrative — verify against the current locally adopted edition for the site. Solar-method context: [NOAA Solar Calculation Details](https://gml.noaa.gov/grad/solcalc/calcdetails.html); the Harth monthly table uses a simpler declination and geometric-daylight approximation whose stated limitations must be retained. Project-date refinement reference: [NREL Solar Position Algorithm](https://midcdmz.nrel.gov/spa/).

Direct answer

For Srinagar at 34.0857, 74.8055, the declination-only solar-noon altitude is approximately 79.4° at the June solstice, 55.9° at an equinox and 32.5° at the December solstice. Refine these geometry checks with the project date, civil time, facade azimuth, terrain and local horizon. The reproducible location record is GeoNames ID 1255634 in administrative area 12, at 34.0857, 74.8055; replace it with the surveyed parcel point before relying on the result. As a transparent geometry check, declination-only solar-noon altitude is about 79.4° at the June solstice, 55.9° at an equinox and 32.5° at the December solstice. Representative 21st-day geometry ranges from about 9.7 hours in December to 14.3 hours in June; this excludes atmospheric refraction, terrain and obstruction effects. The cited national authority is a discovery starting point; current local documents and a named qualified reviewer control project use of this solar shading design record.

Prepared by Harth · Topic-specific calculated asset and fresh SERP brief passed editorial screening; page remains noindex pending the independent content, evidence, similarity and link gates · Published 2026-08-26 · Updated 2026-09-02.

What must be verified for Srinagar?

Srinagar is represented here at approximately 34.0857, 74.8055 for discovery and workflow planning. A project address, parcel, elevation, exposure, authority, and submission date must replace that city-centre reference before design use.

How should solar shading design be established?

  1. Fix the surveyed site and local time basis.
  2. Select an authoritative weather source or a named solar-position algorithm.
  3. Record period, percentile or scenario and units.
  4. Test sensitivity to elevation, exposure, urban form and horizon.
  5. Save the source file, retrieval date and checker in the model record.
InputProject-specific evidenceQA question
Sitesurveyed coordinates, elevation and horizonDoes the point represent the building?
Weather/solar methodnamed dataset, algorithm, period and time basisAre station, time zone and units explicit?
Design scenariocurrent and future scenario agreed by the teamIs an average being mistaken for an extreme?
Complianceadopted local document and editionWas applicability confirmed with the authority?

What are the limits of this worksheet?

This shading-workflow page is a project-starting worksheet, not a design value or approval. The controlling authority and qualified professionals for the Srinagar site remain authoritative.

Srinagar horizontal-overhang screening worksheet

Representative date09:00 altitude / P:HSolar noon altitude / P:H15:00 altitude / P:H
21 January20.91° / 2.61835.78° / 1.38820.91° / 2.618
21 February27.73° / 1.90244.69° / 1.01127.73° / 1.902
21 March35.57° / 1.39855.51° / 0.68735.57° / 1.398
21 April43.33° / 1.06067.49° / 0.41443.33° / 1.060
21 May47.97° / 0.90176.05° / 0.24847.97° / 0.901
21 June49.49° / 0.85479.36° / 0.18849.49° / 0.854
21 July48.11° / 0.89776.36° / 0.24348.11° / 0.897
21 August43.43° / 1.05667.67° / 0.41143.43° / 1.056
21 September35.71° / 1.39155.71° / 0.68235.71° / 1.391
21 October27.33° / 1.93544.16° / 1.03027.33° / 1.935
21 November20.67° / 2.65035.47° / 1.40320.67° / 2.650
21 December18.31° / 3.02132.46° / 1.57218.31° / 3.021

Srinagar overhang sizing hand check

P:H is projection depth divided by the vertical facade distance to shade, calculated as 1 / tan(solar altitude). For a 1.20 m vertical target, multiply the table ratio by 1.20 m. The 09:00 and 15:00 columns use apparent solar time and show the solar-profile-plane ratio; they do not resolve facade azimuth, horizontal shadow displacement or a side-fin geometry.

The Srinagar worksheet uses latitude 34.0857° and records longitude 74.8055°. A project study must replace the reference point, use the actual facade normal and obstruction mask, convert to civil time, test the full occupied period and account for diffuse sky, glazing and thermal performance. Refine solar positions with the NREL SPA.

Sources and method

Location data from the GeoNames IN dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 1255634). Regulatory starting point: Bureau of Indian Standards and the applicable state or urban local body. Figures are illustrative — verify against the current locally adopted edition for the site. Solar-method context: NOAA Solar Calculation Details; the Harth monthly table uses a simpler declination and geometric-daylight approximation whose stated limitations must be retained. Project-date refinement reference: NREL Solar Position Algorithm.

Frequently asked questions

What does the solar shading design record for Srinagar establish?

The solar shading design record for Srinagar establishes a reproducible discovery point at 34.0857, 74.8055 (GeoNames ID 1255634, administrative area 12) and a India source path. It does not establish a final project value, approval or parcel decision.

What must be replaced before using this solar shading design workflow for a project in Srinagar?

For the solar shading design record in Srinagar, replace the 34.0857, 74.8055 city reference with the surveyed site or parcel, identify the competent local authority, and verify the current documents under National Building Code of India plus state and urban-local-body rules. Record the edition, retrieval date, units, assumptions and named checker before relying on the result.

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