Categories - Emissions
Sub Categories
- Carbon Offsets and Trading - 11 projects
- Carbon Capture - 7 projects
- Carbon Intensity and Accounting - 34 projects
- Emission Observation and Modeling - 58 projects
Topics
carbon-intensity, greenhouse-gas, shipping-cii, carbon-intensity-api, shipping-carbon-intensity-indicator, shipping, ship, international-trade, international-maritime-organization, imo-cii, imo, cii, carbon-intensity-indicator, carbon-removal, electricity-prices, bruker, autonomous, exporting-emissions, camtracker, em27, opus, configuration-files, national-grid, urban-emission, column-transport-error, carbon-flux, ameriflux, wrf-domain, emission, emissions-inventory, co2-sensors, co2monitor, co2-measurements, co2-emission, co2-concentration, carbon-api, nem, cdeii, aemo, magicc, climate-modeling-experiments, cdr, carbon-dioxide-removal, supabase, remix, pollution-prediction, ghg-data, llnl, icos, european, dataaccess, sustainable, electricity-maps-api, asyncio, standalone, scale-factors, regridding, masks, data-broker, methane-detection, hyperspectral-datasets, aviris-ng, private-jets, marginal-emissions, electricity-market, scheduling, job-scheduler, gfedv4s-emissions, fires, fire-inventory, fire-emissions, biogeochemical-models, foqus, zero-waste, redux-toolkit, filling, detail, reactjs-app, nodejs-api, climate-targets, climate-change-api, ec0lint, digital-ecology, carbon-model, paris-agreement, ccus, balena, eu-ets-market, mitigation, geoengineering, adaptation, sentinel-5, emissions-api, multiprocessing, electricitymaps, electricitymap, smoke-recognition, smoke, architecture, cpp-climate-change-linux-foundation, carbon-accounting, bluecarbon, blue-carbon, iwa, giz, ecam, on-road, automobiles, pollutants, inversions, inverse-modeling, analytical-inversions, unfccc,
Projects
Contributors
Satish Kumar [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
dlt, image-registration, normalized-dlt, ransac, sift
Damian Borth [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
representation-learning, self-supervised-learning, earth-observation, semantic-segmentation, greenhouse-gas-emissions, pollution-prediction
Ryan Jones [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
Ben [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
Michael A Cohen [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
Sam Borgeson [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
gabekwok [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
freyachay [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Offsets and Trading
Topics:
pfgithub [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, factorio, mod, overhaul, ecmascript, static-code-analysis, tslint
voideanvalue [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis, flavortown, bundler
Max Brenner [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
air-quality, citizen-science, copernicus, emissions-api, esa, sentinel-5, mensa, apt, apt-get
Saurabh Daware [email protected]
OST Projects: 1
Categories: Emissions, Sustainable Development
Sub Categories: Carbon Intensity and Accounting, Data Catalogs and Interfaces
Topics:
data-discovery, earthdata-search, eosdis, climate-change, carbon-footprint, carbon-model, climate-impact, life-cycle-assessment, vscode, vscode-theme and 4 more
LucBerge [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
collector, email-collector, email-download, email-extractor, email-scraper, email-searcher, extractor, github-email, github-user, prospection and 14 more
Tieme van Veen [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, auto, autolayout, cocoapods, constraints, dsl, layout, snapkit and 32 more
Algiane Froehly [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics:
carbon-storage, geomechanics, llnl, reservoir-simulation
Will Chen [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, app-framework, expo, native-apps, universal, ant-design, antd, design-systems and 8 more
Yannick Croissant [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, sockjs, algolia, state-management, ecmascript, static-code-analysis, analyze, bundle and 5 more
Conrad Zimmerman [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, verification, ecmascript, static-code-analysis, flavortown
gfyoung [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, bun, csv, deno, excel, grid, spreadsheet, xlsx and 13 more
Denis Sikuler [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, jsonnet, resources, bootstrap-table, charts, datatable, flex, flex-carousel and 54 more
Tobias Bieniek [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, ember, session-management, dom-assertions, emberjs, qunit, qunit-dom, cookies and 86 more
CJ R [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, feathers, feathersjs, ecmascript, static-code-analysis, build-tool, dev-server, hmr and 17 more
Dan Dascalescu [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, community, networks, presentation, slides, sustainability, systems, featured and 172 more
Luke Lewis [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis
Kir Belevich [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, firefox, headless, marionette, puppeteer, remote, selenium, ecmascript and 1 more
Luke Sikina [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis
Harry Ho [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis
Michael Mclaughlin [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, interpreter, javascript-engine, virtual-machine, ecmascript, static-code-analysis
Hugo Wood [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, bi, business-intelligence, businessintelligence, clojure, metabase, reporting, slack and 8 more
Matijs Brinkhuis [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, best-practices, chrome-browser, mobile-web, progressive-web-app, web-app, geojson, mapbox-gl and 14 more
Michael Novotny [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, formik, higher-order-component, render-props, ecmascript, static-code-analysis, code-quality, linting and 21 more
Klaus Meinhardt [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, best-practices, code-analysis, code-quality, ecmascript, extensible, static-analysis, dynamic and 22 more
Kevin Gibbons [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, europe, european-union, interpreter, javascript-engine, virtual-machine, ecmascript, static-code-analysis and 14 more
Sneh Khatri [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, flavortown, ecmascript, static-code-analysis
Philip (flip) Kromer [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis
Terry [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, ui-grid, rxjs, state-management, store, ngrx, observables, angular-components and 20 more
Jacob Bandes-Storch [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, appx, auto-update, builder, contributions-welcome, deb, distribution-electron, dmg and 26 more
Jonathan Haines [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, dom-assertions, ember, emberjs, qunit, qunit-dom, eslint-config, eslint-rules and 36 more
Redmond Tran [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, jupyterlab, modal, responsive, ecmascript, static-code-analysis, declarative
Will Douglas [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, gym-environments, rl-environment, social-dilemmas, gym, reinforcement-learning, optimistic-ui, reducer-enhancer and 13 more
Rubén Norte [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, indexeddb, localforage, localstorage, offline, websql, http-client, ecmascript and 18 more
Mathieu M-Gosselin [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, ecmascript, static-code-analysis, react-components
Luke Bennett [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, lerna, publishing, ecmascript, static-code-analysis, npm-module, static-analysis, webpack-plugin and 3 more
Bartek Iwańczuk [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, btree, btree-indexes, community, deno, denoland, docker-image, dockerfile and 26 more
Dmitrii Abramov [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, french, french-translation, learn-to-code, learning, learning-rust, rust-book, translation and 15 more
Vitor Balocco [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, probot-app, the-guild, ecmascript, static-code-analysis, declarative, flavortown, commit and 12 more
Kenneth Powers [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, blog, gatsby, web-app, rich-text, slate, text-editor, dark-mode and 67 more
Cyd La Luz [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, design-systems, ember, storybook, ui-components, form-validation, redux-form, expo and 5 more
Jordan Eldredge [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, atom, ecmascript, static-code-analysis, easy, expectation, immersive, painless and 23 more
Joey Baker [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, design-systems, ember, storybook, ui-components, natural-language, textlint, expo and 6 more
Gajus Kuizinas [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, load-balancer, pm2, process-manager, production, babel-plugin, flow-runtime, flowtype and 51 more
Arthur Denner [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, asdf-vm, elixir, elvish, erlang, fish, multiple-languages, nushell and 82 more
Denis Sokolov [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, rich-text, slate, text-editor, fastify-library, json-parser, standard-engine, immutables and 21 more
Thai Pangsakulyanont [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
digital-ecology, ec0lint, ecology, typeface, progressive-web-app, service-worker, workbox, best-practices, chrome-browser, mobile-web and 105 more
Jorge [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
private-jets
Jorge Leitao [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
closember, count-model, econometrics, generalized-linear-models, hypothesis-testing, prediction, regression-models, robust-estimation, timeseries-analysis, apps and 5 more
coli [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
atmospheric-modelling, emissions-inventory
Ochsner, David [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
atmospheric-modelling, emissions-inventory
Gerrit Kuhlmann [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
atmospheric-modelling, emissions-inventory
Haussaire JM [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
atmospheric-modelling, emissions-inventory
Lionel Untereiner [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics:
carbon-storage, geomechanics, llnl, reservoir-simulation
Omar Duran [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics:
carbon-storage, geomechanics, llnl, reservoir-simulation
alexbenedicto [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics:
carbon-storage, geomechanics, llnl, reservoir-simulation
Ian Bell [email protected]
OST Projects: 1
Categories: Emissions, Renewable Energy
Sub Categories: Carbon Capture, Photovoltaics and Solar Energy
Topics:
fluid-properties, thermodynamics, closember, ipython, notebook, repl, spec-0, binder, genetic-programming, symbolic-regression and 4 more
Juha Yrjölä [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
climate-change, helsinki, django-application, geospatial-data
Michael Mechenich [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
Joe Smallwood [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
Tero Tikkanen [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
climate-change, helsinki
adinhodovic [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
alerts, cluster-monitoring, operator, prometheus-operator, alert, argo-cd, grafana-dashboard, monitoring-mixin, monitoring-mixins, backup and 6 more
bkt92 [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
chemical-engineering, carbon-dioxide, carbon-emissions, ghg-data, ghg-emissions, sustainability
Henric Malmberg [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
remix, supabase, vite
andrewsmith16 [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
carbon-emissions, carbon-footprint, sustainability, sustainability-analysis
NPJuncal [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
blue-carbon, bluecarbon, carbon, ecology
MarcioFCMartins [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
bluecarbon, ecology, marine-data, seagrass, blue-carbon, carbon
Ryan Aronson [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics:
carbon-storage, geomechanics, llnl, reservoir-simulation
Vidar Stiernström [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics:
carbon-storage, geomechanics, llnl, reservoir-simulation
lilyclements [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
climate
Stefan Loerwald [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
aviation, carbon-dioxide, carbon-emissions, carbon-footprint, carbon-footprint-estimation, climate-accounting, climate-action, climate-change, climate-crisis, flight-simulation and 3 more
Ben [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
greenhouse-gas
joe-pitt [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
greenhouse-gas
Admin [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
hacktoberfest2023
Ida Jandl [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
Olivier Pinon [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
climate-change, sustainability, electricity-consumption, electricity-prices, electricitymap, electricitymaps
Fiona Tay [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
superset, jdbc, activejob, activerecord, mvc, climate-change, sustainability, electricity-consumption, electricity-prices, electricitymap and 1 more
Cadence Banulis [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
climate-change, sustainability, electricity-consumption, electricity-prices, electricitymap, electricitymaps
Paul Romieu [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
climate-change, electricity-consumption, electricity-prices, sustainability, electricitymap, electricitymaps
RolandSzep [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
climate-change, sustainability, electricity-consumption, electricity-prices, electricitymap, electricitymaps
ChiChieh Huang [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
climate-change, sustainability, electricity-consumption, electricity-prices, electricitymap, electricitymaps
stelrq [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
climate-change, electricity-consumption, electricity-prices, electricitymap, electricitymaps, sustainability
bcmyguest [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
climate-change, electricity-consumption, electricity-prices, electricitymap, electricitymaps, sustainability
Jiří Hofman [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
climate-change, sustainability, data-package, git-scraping, amazon-cognito, aws-amplify, aws-apigateway, aws-cognito, aws-mobile, aws-s3 and 26 more
Nick Vallee [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
climate-change, sustainability, electricity-consumption, electricity-prices, electricitymap, electricitymaps
Andreas [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
climate-change, sustainability, firestore, music, song-management, songs, stage-tools, npm-cli, electricity-consumption, electricity-prices and 2 more
Jan Varho [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
climate-change, sustainability, coverage, coveralls, nosetests, pytest, blog, hybrid, server-rendering, ssg and 7 more
Leon Overweel [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
climate-change, sustainability, cloud-computing, cloud-simulation, data-center, datacenter, datacenter-simulation, opendc, simulator, tu-delft and 5 more
Marina Olivella [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
Cephas Chapa [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
Aleks Novikov [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Capture
Topics:
carbon-storage, geomechanics, llnl, reservoir-simulation
Pierre Segonne [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Carbon Intensity and Accounting
Topics:
climate-change, electricity-consumption, electricity-prices, electricitymap, electricitymaps, sustainability
Mustafa Kemal Emil [email protected]
OST Projects: 1
Categories: Emissions
Sub Categories: Emission Observation and Modeling
Topics:
emit, lpdaac