Links

Curated links

Websites and resources Karl-Martin likes.

Karl-Martin

Code

GitHub: Code and projects by Karl-Martin.

Media

Bygger egne webkameraer, og har dem på i møter (kode24): kode24 article featuring Karl-Martin's Raspberry Pi webcam prototype and other developers' video meeting setups.

Sites

VP1045 Webcam: Cabin webcam at Dagali.

Social

Instagram: Photos and updates from Karl-Martin.
Facebook: Karl-Martin on Facebook.

Work

Kraftlauget: Karl-Martin's current workplace.

Computing & Software

Artificial Intelligence

Benchmarks

Artificial Analysis: Independent model benchmarks for intelligence, speed, context and API pricing.
DeepSWE: Long-horizon software-engineering benchmark and leaderboard.

Infrastructure

vLLM: High-throughput open-source LLM inference and serving engine.

Local Models

Ollama: Run and manage language models locally.
llama.cpp: High-performance local inference for GGUF language models.
LM Studio: Desktop application for downloading and running local language models.
llama.cpp Server: OpenAI-compatible local inference server included with llama.cpp.
whisper.cpp: High-performance Whisper inference in C and C++.

Models

Hugging Face: Models, datasets and tools for machine learning and local LLMs.
LMArena: Compare current language models through blind evaluations.
OpenRouter: Unified API and comparison layer across many hosted language models.
NB-Whisper: Norwegian Whisper models from the National Library AI Lab.

Tools

Whisper: OpenAI’s speech recognition model and reference implementation.
faster-whisper: A CTranslate2 implementation of Whisper.

Books

Software

The Pragmatic Programmer: Official page for the 20th anniversary edition.
Design Patterns: Elements of Reusable Object-Oriented Software: Publisher page for the Gang of Four design-patterns book.

Technical

O'Reilly: Technical books, learning, and reference material.

Computing

Media

Jeff Geerling (YouTube): Linux, servers, Raspberry Pi, and maker projects.
Level 2 Jeff (YouTube): Jeff Geerling’s second channel.
Computerphile (YouTube): Computer science explained by researchers and practitioners.
ServeTheHome (YouTube): Servers, networking, and enterprise hardware.
LGR (YouTube): Retro computers, games, and oddware.
LGR Blerbs (YouTube): Supplementary LGR videos and informal updates.

People

Donald Knuth: Donald Knuth’s Stanford home page and publications.
Jeff Geerling’s website: Jeff Geerling’s projects, articles, books, and official channel links.

Databases

PostgreSQL: Open-source object-relational database and official documentation.
SQLite: Small, self-contained SQL database engine.

Development

Editors

Neovim: Hyperextensible Vim-based text editor.
Vim: The official Vim editor site.

Media

MediaMTX: Media server for RTSP, WebRTC, HLS and related streaming protocols.
FFmpeg: Essential toolkit for video, audio, codecs, streaming and transcoding.

Python

Python: The official Python programming language site.
Skyfield: High-precision astronomy library for Python.
NumPy: Fundamental array-computing package for Python.
Astropy: Community Python library for astronomy.
SciPy: Scientific computing tools for Python.
SQLAlchemy: Python SQL toolkit and object-relational mapper.
GeoAlchemy 2: Spatial database extensions for SQLAlchemy.
orjson: Fast JSON library for Python.
pyais: Python encoder and decoder for AIS messages.

Reference

endoflife.date: Product release and end-of-life data.

Security

Diceware: Arnold Reinhold’s original Diceware passphrase page.

Tools

ripgrep: Fast recursive line-oriented search tool.

Tools & Frameworks

Astro: Web framework used and followed in Karl-Martin's web projects.
pnpm: Fast and space-efficient JavaScript package manager.
TypeScript: TypeScript language, handbook and releases.
uv: Fast Python package and project manager from Astral.
FastAPI: Modern Python API framework.

Web

HTTP/3 Explained: Readable technical explanation of QUIC and HTTP/3.
PHP: The official PHP language site and manual.
Can I Use: Browser support tables for modern web platform features.
MDN Web Docs: Reference documentation and guides for web platform technologies.

Hardware

ChromeOS

ChromeOS Auto Update policy: Google’s model-by-model ChromeOS update-expiry list.
ChromeOS Device Developer Information: Chromium's reference table of ChromeOS device models, board names, platforms, and kernel versions for developers.

Repair

iFixit: Repair guides, teardowns and hardware documentation.

Storage

Backblaze Drive Stats: Hard-drive reliability reports and downloadable drive statistics from Backblaze's data centers.

USB

ChargerLAB: USB-C chargers, cables, power-delivery testing and Power-Z news.
USB-IF: Official USB specifications, standards and certification information.
USB-C (Wikipedia): Reference article about the USB-C connector and standard.
USB Power Delivery (Wikipedia): Reference section covering USB Power Delivery.

Linux

Kernel

Linux Kernel: Canonical home of the Linux kernel and current releases.

News

LWN.net: Deep coverage of Linux kernel development and the open-source ecosystem.

System

Z shell: The Z shell project home page.

News

Hacker News: A community-driven feed of technology and startup news.

Security

People

Schneier on Security: Bruce Schneier’s essays, analysis, and news about security and society.

Video

Deviant Ollam (YouTube): Physical security, access, and travel videos.
LockPickingLawyer (YouTube): Lock mechanisms, testing, and bypass techniques.

Software

Browsers

Google Chrome: Google’s Chrome web browser.
Chromium: Open-source browser project behind Chrome.

Learning

Anki: Spaced-repetition flashcard software.

Technology Media

Video

Asianometry (YouTube): Semiconductor, technology, and Asian industrial history.
Technology Connections (YouTube): Deep explanations of everyday technology.
Technology Connextras (YouTube): Technology Connections’ extra channel.
TechTechPotato (YouTube): Deep reporting and interviews about processors, semiconductors, and the technology industry.

Electronics & Making

Electronics

Development

PlatformIO: Cross-platform embedded development environment and package ecosystem.
Adafruit: Electronics components, boards, and learning resources.
SparkFun: Electronics components, boards, and tutorials.
KiCad: Open-source electronics design automation suite.

ESP32

Espressif: ESP32 chips, modules, datasheets and development resources.
ESP-IDF Documentation: Official low-level SDK documentation for ESP32 development.

Manufacturing

JLCPCB: PCB fabrication and assembly service.
PCBWay: PCB fabrication and assembly service.

Reading

Hackaday: Electronics, embedded systems, hardware hacking and wonderfully unnecessary projects.
EEVblog: Electronics engineering videos, teardowns, test equipment and forum discussions.

Video

EEVblog YouTube (YouTube): Dave Jones’s electronics engineering channel.
EEVblog2 (YouTube): Second EEVblog channel.
EEVdiscover (YouTube): EEVblog discovery and educational videos.
BigCliveDotCom (YouTube): Electronics teardowns, reverse engineering, and projects.
CuriousMarc (YouTube): Restoration of historic electronics and space hardware.
IMSAI Guy (YouTube): Hands-on electronics and vintage-computing experiments.
Marco Reps (YouTube): Electronics, measurement, and precision engineering.
Phil’s Lab (YouTube): Electronics design and embedded systems.
BigCliveLive (YouTube): Big Clive’s livestream and supplementary channel.

Embedded Linux

Linux

BusyBox: Tiny Unix userland widely used in embedded Linux and initramfs systems.

Engineering

Video

Practical Engineering (YouTube): Civil engineering and infrastructure explained.

Making

Video

Adam Savage’s Tested (YouTube): Making, props, tools, and behind-the-scenes craft.
FIRST CLASS AMATEUR (YouTube): Practical making, knots, repairs, and experiments.
Simone Giertz (YouTube): Inventing, building, and unconventional engineering.
Laura Kampf (YouTube): Making, renovation, tools, and creative builds.

Reviews & Testing

Video

Project Farm (YouTube): Independent comparisons of tools and products.

Shopping

Marketplaces

eBay: Online marketplace.
AliExpress: Online marketplace for electronics and other goods.

Friends

Making

WhitespaceProps: Thomas Smestad’s prop-making portfolio.
Bizziton Crafts: Tonje’s plushmaking and art portfolio.

Home, Food & Hobbies

Brewing

Beer

Norbrygg: Norwegian homebrewing community and resources.
Brewfather: Recipe design, fermentation tracking and brewing calculations.

Reference

BJCP: Beer style guidelines and judging references.

Tools

BeerSmith: Long-running brewing recipe and process-design software.

Video

The Craft Beer Channel (YouTube): Films, brewing, travel, and education about craft beer.

Chess

Computing

Chess Programming Wiki: Deep technical reference on chess engines, search, evaluation and computer chess.
Stockfish: Open-source chess engine.
Stockfish Testing: Distributed testing for Stockfish changes.
Lichess tablebase: Syzygy endgame tablebase service used by Lichess.
Sesse computer chess analysis: Live high-performance computer chess analysis.
Sesse tablebases: Endgame tablebase resources hosted by Sesse.

News

The Week in Chess: International chess news and game collections.

Play

Lichess: Free and open-source online chess.

Reference

Lichess open database: Open downloads of Lichess games, puzzles, and evaluations.

Food

Reference

Matvaretabellen: Official Norwegian nutrient database for foods and ingredients.

Video

First We Feast (YouTube): Food culture and interview series.

Games

Tetris

CTWC: Classic Tetris World Championship.
Tetris Wiki: Technical history, mechanics, randomizers and terminology across Tetris games.
Classic Tetris Monthly: Competitive NES Tetris tournaments outside the annual world championship.

Video

Summoning Salt (YouTube): Documentaries about speedrunning history.

Home Automation

MQTT

MQTT Explorer: Graphical browser and debugging tool for MQTT brokers and topic trees.

Platforms & Software

Home Assistant: Open-source home automation platform.
Zigbee2MQTT: Vendor-neutral Zigbee bridge used in Karl-Martin's smart home.
ESPHome: ESP32 and ESP8266 devices integrated directly with Home Assistant.
Eclipse Mosquitto: Lightweight MQTT broker for IoT systems.

Tools

HACS: Home Assistant Community Store for custom integrations and themes.

Maps, Positioning & Tracking

GNSS

Galileo

European GNSS Service Centre: Galileo constellation status, services and documentation.
Galileo HAS: Official information about Galileo's High Accuracy Service.
List of Galileo satellites (Wikipedia): Past and present Galileo spacecraft.

GPS

GPS.gov: Official information about the US Global Positioning System.
List of GPS satellites (Wikipedia): Past and present GPS spacecraft.

Norway

Kartverket Positioning: Norwegian GNSS reference networks, positioning and geodesy.

Reference

Navipedia: ESA reference material about GNSS systems and positioning.
List of GLONASS satellites (Wikipedia): Past and present GLONASS spacecraft.
List of BeiDou satellites (Wikipedia): Past and present BeiDou spacecraft.
NavIC satellites (Wikipedia): The NavIC constellation and its satellite list.
QZSS satellites (Wikipedia): The QZSS constellation and its satellite list.
International Earth Rotation and Reference Systems Service: Earth orientation, reference frame, and time scale data and standards for navigation and astronomy.

Reference Stations

EUREF Permanent Network: European network of continuously operating high-quality GNSS reference stations.

Tools

u-center 2: u-blox configuration, logging and GNSS receiver evaluation software.
RTKLIB: Classic open-source toolkit for RTK, PPP and GNSS post-processing.
RTKLIB on the OpenStreetMap Wiki: OSM Wiki guide to RTKLIB's precise GNSS positioning, data collection, and post-processing workflows.

Mapping

Data

Geofabrik Downloads: Regional OpenStreetMap extracts for offline processing.
Natural Earth: Clean public-domain vector and raster data for small-scale world maps.
GeoJSON: The GeoJSON format home page.

Development

MapLibre: Open-source vector map rendering used in Karl-Martin's map projects.
PMTiles: Single-file tiled map archive format for cloud and web maps.
tilemaker: Create vector tiles directly from OpenStreetMap data.

GIS

QGIS: Full-featured open-source desktop GIS for analysis and map production.
GDAL: Core command-line and library toolkit for raster and vector geospatial data.
PROJ: Coordinate-system and map-projection transformation library.
PostGIS: Spatial database extension for PostgreSQL.

Infrastructure

Switch2OSM: Guides for building and hosting your own OpenStreetMap-based map stack.

Norway

Norgeskart: Official detailed maps of Norway from Kartverket.
Geonorge: Norway's national portal for geographical data.
Laserinnsyn: Kartverket’s viewer for detailed elevation and laser data.

OpenStreetMap

OpenStreetMap: The collaborative world map and foundation for many of Karl-Martin's mapping projects.
Overpass Turbo: Interactive querying and exploration of OpenStreetMap data.
OpenStreetMap Wiki: Technical reference for OSM tags, formats, imports, rendering and infrastructure.
OSM Taginfo: See how OpenStreetMap tags are actually used across the global database.
OSM Planet: Official full-planet OpenStreetMap database dumps and replication data.
OSMCha: Inspect and review OpenStreetMap changesets.
Nominatim: OpenStreetMap geocoding and reverse-geocoding software.
OSM Latest Changes: Interactive map of recent OpenStreetMap changesets, opening around Tønsberg.

Reference

OpenStreetMap routing wiki: OSM Wiki overview of routing software and data.

Routing

Valhalla: Open-source routing engine for OpenStreetMap data.
OSRM: High-performance OpenStreetMap routing engine.
GraphHopper: Open-source route-planning engine.

Tooling

osm2pgsql: Import and transform OpenStreetMap data into PostgreSQL/PostGIS.
Osmium Tool: Fast command-line processing of large OSM PBF and XML datasets.
geojson.io: Quick browser editor and viewer for GeoJSON.
HeyWhat'sThat: Panorama, horizon, and line-of-sight calculations.

Precision Time

PTP

LinuxPTP: PTP/IEEE 1588 implementation for Linux including ptp4l and phc2sys.

Reference

Network Time Foundation: Open-source network-time projects including NTP and LinuxPTP.
NIST Internet Time Service: Reference information about NIST's public Internet time service.
HP GPS time and frequency receivers: Reference for HP 58503A and Z3801A GPS-disciplined receivers.
time-nuts archive: Mailing-list archive for precision time and frequency enthusiasts.

Tracking

Aviation

ADS-B Exchange: Community-driven live aircraft tracking.
Flightradar24: Live commercial and general aviation tracking.
Avinor: Norwegian airport and flight information.
OpenSky Network: Open ADS-B and Mode-S network with live and historical aircraft data.
ADSB.lol: Open community ADS-B tracking network with detailed aircraft traces.
FlightAware: Flight tracking, schedules and historical flight information.

Maritime

Kystinfo: Norwegian coastal maps, maritime infrastructure and navigation data.
BarentsWatch: Norwegian maritime, coastal and ocean information services.
Kystverket AIS: Information and public services built around Norway's national AIS network.
Kystdatahuset: Search and download Norwegian vessel movements and historical AIS data.
NAIS: Kystverket's public real-time map of vessel traffic in Norwegian waters.
MarineTraffic: Worldwide AIS vessel tracking and port information.
VesselFinder: Alternative worldwide AIS vessel tracking service.
Automatic Identification System (Wikipedia): Reference article about maritime AIS.

Music & Culture

Books

Shops

Norli: Norwegian bookseller.
ARK Bokhandel: Norwegian bookseller.

Entertainment

Video

The Technical Difficulties (YouTube): Comedy and panel shows featuring Tom Scott and friends.

Film

Reference

IMDb: Film and television database.
List of film noir titles (Wikipedia): Chronological reference list of film noir titles.

Television

List of Columbo episodes (Wikipedia): Episode list for the Columbo television series.

Video

Watch It For Days: Creator page for long-form Columbo episode analysis.

Music

Artists

DJ “S” website: Official site for the soul, funk, and disco DJ and producer.

Hammond

Hammond Organ: Official Hammond organ site and modern tonewheel-organ products.

MIDI

MIDI Association: MIDI specifications, standards and technical resources.
Web MIDI API: Browser API reference for connecting MIDI hardware to web applications.
MIDI Router: Browser-based MIDI routing with input and output channel mappings and an event log.
It's Just Keyboard: MIDI chord recognition, chord references and progressions, a circle of fifths, and a metronome.

Reference

Discogs: Enormous database of releases, recordings, labels and physical music.
Coltrane's Tone Circle: Interactive exploration of the circle of fifths, jazz harmony, and Coltrane's geometric tone circle.

Scores

IMSLP: Large public-domain library of sheet music and scores.
Musescore.com: Large community catalogue of sheet music and arrangements.

Software

MuseScore Studio: Open-source music notation and score-writing software.

Video

Dj S TV (YouTube): Soul, funk, disco, and hip-hop mixes by DJ “S”.

Networking & Infrastructure

DNS

Unbound: Recursive validating DNS resolver.
DNSViz: Visual DNS and DNSSEC diagnostics.
Zonemaster: Test a domain's DNS health, including DNSSEC, nameserver reachability, and address checks.

Infrastructure

Caddy: Modern web server and reverse proxy with automatic HTTPS.

Internet

RIPE Atlas: Distributed Internet measurement network.
BGP.tools: Fast lookup of ASNs, prefixes, routing paths and Internet topology.
Hurricane Electric BGP Toolkit: Detailed BGP, ASN, prefix and peering information.
RIPEstat: Internet-number and routing information from RIPE NCC datasets.
Cloudflare Radar: Internet traffic, routing, outages, protocols and security trends.
PeeringDB: Interconnection database for networks, IXPs and datacenters.

IPv6

Test IPv6: Quick test of IPv6 connectivity and configuration.

Routing

OpenWrt: Linux-based router operating system used on Karl-Martin's home gateway.
MikroTik Documentation: RouterOS, switching, VLAN and multicast documentation.

Time

chrony: NTP implementation used for precise Linux timekeeping.
NTP Pool: Global volunteer NTP service, including Karl-Martin's interest in running pool servers.
Netnod Time: Articles and technical information about Netnod's Swedish time and frequency services.

Tools

Wireshark: Protocol analyzer for everything from Ethernet and IPv6 to obscure application protocols.

VoIP

Grandstream HT802: Two-port analog telephone adapter product page.

VPN

WireGuard: Simple and modern VPN protocol.

Norway & Local

History

Nasjonalbiblioteket: Digitized Norwegian books, newspapers, periodicals, photographs and historical material.
DigitaltMuseum: Search photographs and objects from Norwegian museums and historical collections.
Lokalhistoriewiki: Extensive collaborative reference for Norwegian local history.
Kartverket Historiske Kart: Interactive access to thousands of digitized historical Norwegian maps.
Norge i bilder: Historical and contemporary aerial photography of Norway.
Kulturminnesøk: Map and database of registered Norwegian cultural heritage sites.
Vestfoldmuseene: Museums, collections and local history from Vestfold.
Oseberg Vikingarv: Tønsberg-based reconstruction and research around the Oseberg Viking ships.

National

Data

SSB: Statistics Norway: population, economy, geography and societal data.
data.norge.no: Norwegian government catalogue for open public datasets and APIs.

News

NRK: Norwegian public-service news, radio, and television.
Aftenposten: Norwegian national news, analysis, and commentary.

Open Data

Meteorologisk institutt GitHub: Open-source projects and data tooling from MET Norway.

Reference

Lovdata: Norwegian laws, regulations and legal decisions.
Almanakk for Norge (Wikipedia): Reference article about the Norwegian almanac.

Outdoors

UT.no: Hiking routes, cabins and outdoor destinations throughout Norway.
DNT: The Norwegian Trekking Association.
Oslofjordens Friluftsråd: Outdoor recreation, coastal access and the Oslofjord.
Varsom: Norwegian avalanche, flood, ice and landslide warnings.

Tønsberg

Tønsbergs Blad: Local news from Tønsberg and Vestfold.
Tønsberg kommune: Municipal information and local services.
Tønsberg og Færder bibliotek: Local library catalogue, events and services.

Vestfold

Vestfold fylkeskommune: Regional information for Vestfold.
Visit Vestfold: Places, events and activities around Vestfold.

Radio & Wireless

Amateur Radio

NRRL: Norwegian Radio Relay League and Norwegian amateur-radio news.
ARRL: American Radio Relay League.
RSGB: Radio Society of Great Britain.
QRP Labs: Amateur-radio kits and QRP equipment.
Sandefjordgruppen (LA3S): Sandefjord's local amateur radio group in the Norwegian Radio Relay League.
Tønsberggruppen (LA1T): Local amateur radio group for Tønsberg and the surrounding area, with activities and repeater information.
Hortengruppen (LA2Z): Horten's local amateur radio group in the Norwegian Radio Relay League.

APRS

APRS.fi: Live APRS station, telemetry and position map.

Aviation Radio

LiveATC: Internet streams of air-traffic-control radio from participating locations.

Callsigns

QRZ: Worldwide amateur-radio callsign database and community.

Digital

WSJT-X: Weak-signal software behind FT8, FT4, JT65 and related modes.

Digital Voice

BrandMeister: DMR network status, repeaters, hotspots and talkgroups.

DX

Club Log: DX log analysis, leaderboards, propagation and QSL tools.
DX Summit: Classic real-time DX cluster spot aggregation.

Logging

Logbook of The World: ARRL's electronic QSO confirmation and award-credit system.

Propagation

PSK Reporter: Real-time reception reports for FT8 and other digital modes.
WSPRnet: Weak Signal Propagation Reporter network.
Reverse Beacon Network: Worldwide automated CW and digital-mode reception reports.
DXMaps: Live amateur-radio propagation maps and band openings.
Hepburn Tropo Forecast: Tropospheric ducting forecasts for Europe.
VOACAP: HF propagation predictions and coverage tools.
NCDXF International Beacon Project: Worldwide synchronized HF beacons for checking propagation on five bands.
Ramfjordmoen Ionogram: Latest ionogram from the Ramfjordmoen ionosonde near Tromsø, operated by Tromsø Geophysical Observatory.
Juliusruh Ionogram: Latest ionogram from the Leibniz Institute of Atmospheric Physics ionosonde at Juliusruh, Germany.
Hepburn Tropo Forecast: Northwest Europe: Six-day tropospheric ducting forecast maps for VHF, UHF, and microwave propagation in northwest Europe.
MMMonVHF: European VHF amateur radio community with propagation reports, forecasts, beacons, and station data.

Reference

RadioReference: Large international frequency and radio-system database.

Repeaters

RepeaterBook: Worldwide amateur-radio repeater database.

Satellites

AMSAT: Amateur-radio satellites, status information and operating resources.

SDR

RTL-SDR.com: SDR hardware, software, projects and radio news.
GNU Radio: Open-source software-defined radio toolkit.
SDR++: Cross-platform SDR receiver software.
Gqrx: Open-source SDR receiver application for Linux and other platforms.
OpenWebRX: Browser-based multi-user SDR receiver.
KiwiSDR: Official KiwiSDR site, documentation, changelog and receiver resources.
KiwiSDR Receiver Map: Find publicly accessible KiwiSDR receivers around the world.
WebSDR: Directory of browser-accessible software-defined radio receivers.

Shortwave

HFCC: International shortwave broadcast-frequency schedules.
Short-Wave.info: Search shortwave broadcast stations by frequency, time and location.

Tracking

SondeHub: Live radiosonde tracking and telemetry.

Video

Geerling Engineering (YouTube): Jeff and Joe Geerling’s radio engineering channel.
w2aew (YouTube): Amateur radio and electronics tutorials.
The European Ham Radio Show (YouTube): Weekly live discussions about amateur radio, antennas, and related projects.

Science & Mathematics

Mathematics

Video

Stand-up Maths (YouTube): Matt Parker’s mathematics channel.
Numberphile (YouTube): Videos about mathematics and numbers.
Numberphile2 (YouTube): Extra footage and deeper material from Numberphile.
3Blue1Brown (YouTube): Visual mathematics by Grant Sanderson.

Science

Video

Periodic Videos (YouTube): Chemistry and the periodic table.
SmarterEveryDay (YouTube): Science and engineering exploration with Destin Sandlin.
Smarter Every Day 2 (YouTube): Second SmarterEveryDay channel.
Applied Science (YouTube): Advanced scientific experiments and instrumentation.
Tom Scott (YouTube): Factual entertainment about science, language, and places.
Tom Scott plus (YouTube): Tom Scott’s collaboration and challenge channel.
Sixty Symbols (YouTube): Physics and astronomy videos from Brady Haran and University of Nottingham academics.

Space & Weather

Space

Astronomy

Stellarium: Open-source planetarium and sky simulation software.

Aurora

Aurorasaurus: Citizen-science aurora reports and visibility information.
NOAA Aurora 30-Minute Forecast: OVATION model maps forecasting aurora location and intensity about 30 to 90 minutes ahead.

Eclipses

NASA Eclipses: NASA eclipse science, safety and event information.
Solar eclipse of August 2, 2027 (Wikipedia): Reference article for the total solar eclipse.

Ground Stations

SatNOGS Network: Crowdsourced global network of satellite ground stations and observations.

News

ESA: European Space Agency missions, science and engineering news.

Norway

Space Norway Satellite Fleet: THOR and ASBM satellites operated by Space Norway.
Norwegian Space Agency: Norwegian space programmes, satellites and space-industry news.
Norsk meteornettverk: Norwegian meteor network with fireball reports, camera observations, and meteorite information.

Reference

The Astronomical Almanac: US Naval Observatory information for the annual almanac.

Satellites

Heavens-Above: Satellite passes, ISS predictions and sky charts.
CelesTrak: Orbital elements and satellite tracking data.
SatNOGS Database: Community-maintained satellite and transmitter database.
Space-Track: Authoritative US orbital catalogue and element-set data.
N2YO: Satellite positions, passes and orbital information.
List of Starlink and Starshield launches (Wikipedia): Launch-by-launch reference for the Starlink constellation.
SatTrackCam Leiden: Marco Langbroek's observations and analysis of satellites, reentries, and other space activity.

Space Weather

SpaceWeatherLive: Aurora, solar wind and geomagnetic activity dashboards.
SolarHam: Compact dashboard of solar activity and geomagnetic conditions.
Tromsø Geophysical Observatory: UiT observatory with geomagnetic, ionosonde, riometer, and aurora observations from northern Norway.
TGO Geomagnetic Data: Realtime and archived magnetograms, K-indices, and other geomagnetic measurements from TGO and partner stations.
TGO Provisional K-indices: The latest seven days of local geomagnetic K-indices for Tromsø and other northern stations.
NOAA Space Weather Prediction Center: NOAA's current solar and geomagnetic conditions, forecasts, alerts, and observations.
NOAA Space Weather Enthusiasts Dashboard: At-a-glance solar, solar wind, aurora, ionosphere, and solar cycle displays from NOAA.

Sun

NASA Solar Dynamics Observatory: Near-real-time high-resolution imagery and observations of the Sun.
SOHO: Solar observations including coronagraph imagery useful for CME tracking.

Video

Scott Manley (YouTube): Spaceflight, astronomy, and orbital mechanics.

Weather

Data

MET Weather API: MET Norway's open weather APIs.
Frost: Historical weather observations from MET Norway.
MET Radar API: Radar composite data from MET Norway for custom weather visualizations.
Utsikt fra Voksenlia: Frequently updated webcam panorama over Oslo, Bærum, and Asker from Voksenlia.
Været på Voksenlia: Live readings, charts, and archives from the Voksenlia weather station in Oslo.

Forecasts

Yr: Weather forecasts from MET Norway and NRK.
Windy: Interactive weather maps and numerical forecast models.

Lightning

Blitzortung: Community-based real-time lightning detection.
LightningMaps.org: Near-real-time lightning display based on the Blitzortung detector network.
MET Lightning: Meteorologisk institutt lightning observations.
Blitzortung Live Lightning Map: Live map of lightning strikes detected by the Blitzortung network.

Oslofjord

MET Oslofjord API: Current forecasts and ocean data for Oslofjorden and Drammensfjorden.

Satellites

MET Polar Satellite API: Satellite imagery from polar-orbiting meteorological spacecraft.

Transport & Mobility

Aviation

Reference

Nasjonalt register over luftfartshindre: Kartverket’s map and register for aviation obstacles.

Cycling

Video

Berm Peak (YouTube): Mountain bikes, trail building, and repairs.
Berm Peak Express (YouTube): Second Berm Peak channel for shorter projects and rides.

Drones

Regulations

Luftfartstilsynet – Droner: Norwegian drone regulations and operational guidance.

Transport

Video

Not Just Bikes (YouTube): Urban planning, transport, and walkable cities.
NJB Live (YouTube): Live and supplementary Not Just Bikes material.

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