Christoforos Karanikas

Forester, Greek Forest Service

[Christoforos Karanikas @ChristofKar]

Awesome new dataset by @Meta . Very high resolution (1m) canopy height map. Among others, incredibly useful in forest inventories, estimation of deforested area, etc.
#AI , #lidar, @GoogleEarthEng , #RemoteSensing, #GIS

[Christoforos Karanikas @ChristofKar]

Check out my latest article: Karla Flood Monitoring - February 2024 update https://t.co/DDhH0Cvo99 via @LinkedIn

[Christoforos Karanikas @ChristofKar]

More than 3 months after the devastating #floods in #Thessaly, C. #Greece, the total flooded area is reduced only by 16,02%!

[Christoforos Karanikas @ChristofKar]

20.995: is the number of the buildings affected by the devastating #floods in #Thessaly, C. #Greece, on the 10th of Sept 23. This first assessement was performed in #GEE using #Sentinel-2 imagery, #RandomForest #classification and the #GlobalMLBuildingFootprints.

[Christoforos Karanikas @ChristofKar]

Major rivers of Greece coloured according to their waterdsheds. #Hydrosheds, #QGIS, #rivers, #maps, #Greece.

[Christoforos Karanikas @ChristofKar]

Greece Population Density 3D Map for 400m H3 Hexagons. Created with #qgis, #aerialod and #Kontur source data. #map, #3D , #Greece

[-- -- --------- @i_ameztoy]

Two sides of the same coin: Floods ↙️ & a huge wirldfire ↗️ in Greece. Catastrophic extreme events separated by few hundred kilometers & occurred just one after the other during summer 2023. A paradigmatic image that will be remembered 🔥💦

#Copernicus #Sentinel2 🛰️
Full Size: https://t.co/fpvk98b5ie 🧐

[Christoforos Karanikas @ChristofKar]

Check this out https://t.co/c7fIi7h4st #EOBrowser #EarthObservation #RemoteSensing
The huge wildfire in Alexandroupoli, GR, that has been burning for four days and claimed the life of 18 refugees, 2 children among them...

[Christoforos Karanikas @ChristofKar]

@spatialthoughts Using #QGIS I found almost the same solution with you:

[Christoforos Karanikas @ChristofKar]

Following Ujaval Gandhi 's script for cloud-free images using median composite and percentile composite gives really good results comparing to median composites based on QA60 filtering. #spatialthoughts #GEE #Sentinel2

[Ujaval Gandhi @spatialthoughts]

#GEE #Levelup Tip: Median composites are widely used for obtaining cloud-free images from optical data. If your composite images still contain cloud artifacts, try a 25-Percentile composite instead - that works better for very cloudy regions. https://t.co/jOk3e7Fyvg

[Simon Ilyushchenko @Exopixelist]

GEDI L4A biomass tables are now in Earth Engine:
https://t.co/2RYDGGYVJD and https://t.co/OnMJgZpqmF

L4A rasters are on the way

[Christoforos Karanikas @ChristofKar]

One of my fav apps! And it's working really good... https://t.co/m8zoH55Nj7

[OPENGIS.ch @OPENGISch]

QGIS Relations, their Widgets and the Plugins of them https://t.co/hHnWInVxfL

[Mike Wulder @mikewulder]

Investigates locations with multiple burns using #Landsat and #LandTrendr. Link reburn severity to post-fire veg recovery rates. #forestrecovery #GEE
Weber et al. Vegetation recovery rates provide insight into reburn severity in southwestern Oregon, USA.
https://t.co/Bos80SQy1T

[Copernicus EMS @CopernicusEMS]

#CEMS activities during the #2022WildfireCrisis🔥

📍Focus: #Greece🇬🇷

Our #RapidMapping service was activated 1⃣1⃣ times by @GSCP_GR between 1 June & 30 September 2022 and delivered a total of 3⃣2⃣ maps💡

Read more👇
https://t.co/23E4MJDaVu

[Christoforos Karanikas @ChristofKar]

Reforestation means more than just planting trees https://t.co/KFNVtiZeIP

[Christoforos Karanikas @ChristofKar]

😃 to receive the honoray distinction in the category Forest Prevention and Protection in Smart Forest Innovation Challenge organized by the Ministry Of Environment 🇬🇷 for my change detection and time series analysis proposal! #EarthEngine, #Sentinel2, https://t.co/FQeizSA1Sl,

[Keiko @Keiko_geo]

This needs to be retweeted now. Thank you 🐦❤️

[Christoforos Karanikas @ChristofKar]

Wildfire daily spread in Evoia Island (GR) in August 2021. #GoogleEarth, #EarthEngine, #FIRMS, #Sentinel2 , #Evoia, #wildfires , #Copernicus

[Christoforos Karanikas @ChristofKar]

How to Calculate Various Spectral Indices in Google Earth Engine Quickly https://t.co/c1weKxuuLv