---
title: "Features"
method: POST
path: "/api/v1/cross/polarization-em/features"
tags: ["Polarization-EM Anisotropy"]
---

# Features

`POST /api/v1/cross/polarization-em/features`

## Request

- Base URL: `https://www.deepmapai.com`
- URL: `https://www.deepmapai.com/api/v1/cross/polarization-em/features`
- Auth: none declared

## Query parameters

- `x_api_key` string, nullable

## Request body

- PolEmRequest
  - `lat` number, required: Site latitude (WGS-84)
  - `lon` number, required: Site longitude (WGS-84)
  - `dense_array_override` object, nullable: Optional pre-computed dense-array values: {pol_azimuth, pol_rectilinearity, survey_mean_azimuth_deg, survey_deflection_std_deg}. Bypasses regional 3-component fetch.

## Response `200`

Successful Response

- object

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/deepmapai/apis/deepmap-ai.md) · [All operations](https://skmtc.dev/deepmapai/apis/deepmap-ai/llms.txt) · [OpenAPI document](https://skmtc.dev/deepmapai/apis/deepmap-ai/revisions/dab995d977d0?raw)