Almost half the buildings standing in Minneapolis and Saint Paul today were already up by 1930. The war nearly stopped building: 3,957 survivors from 1941, 269 from 1943.

#dataviz #TwinCities #maps

In a typical autumn, Italy's Alpine larches peak around mid-October, the Apennine beech woods late in the month, and Calabria and Etna not until early to mid November. Averaged over 25 years, day by day.

Data: NASA MODIS, ISPRA, Copernicus

#fallfoliage #Italy #autunno #maps

Lake Tahoe's surface never sits still, even in a calm week. Light autumn winds kept it drifting about two and a half miles a day, curling into eddies a few miles across.

Our own model, 30 Sep-7 Oct 2026. Data: NOAA HRRR, TRPA, USGS

#LakeTahoe #dataviz #maps

Two weeks of air moving over the entire planet, both poles in one frame. Color is air temperature, brightness is speed. Around Antarctica, the storms of the Southern Ocean race west to east with almost no land in their way.

Data: ERA5 / Copernicus #weather #wind #dataviz

Fall color takes about four weeks to cross the US. Minnesota's north woods peak in the first week of October; the South Atlantic waits until the end of the month.

The typical autumn, from 25 years of satellite records.

#fallfoliage #autumn #maps #dataviz

The 1906 fire burned the heart of San Francisco, yet 1 in 8 buildings standing today is older than the quake: the Victorians of the Mission, Noe Valley and the Haight, outside the fire line.

#dataviz #SanFrancisco #maps

Lake Champlain lost almost 4°F in the first week of October. The Inland Sea, east of the islands, started as the warmest water on the lake and cooled the fastest.

Our own model, 1-8 Oct 2026. Weather: NOAA HRRR · Depths: VCGI · © OpenStreetMap

#LakeChamplain #Vermont #dataviz

In Bolivia one band lights up hard at the foot of the Andes: humid lowland air climbs the eastern slope and erupts into storms almost every afternoon. The high, dry Altiplano gets far fewer strikes. 11,921,089 flashes over Bolivia, one frame per day for a year. Data: NOAA GOES-19 #Bolivia

Typical peak colour in Japan's forests: around Kamikochi Oct 16, Kyushu mid-November. Timing from 25 years of NASA MODIS phenology placed on JMA's maple observations; colour from the Ministry of the Environment vegetation map. #紅葉 #Japan

The Irish Sea fills and empties twice a day, the tide pouring in through both the North Channel and St George's Channel. This week the water off Liverpool rose and fell up to 8 metres; off Arklow it barely moved.

Data: E.U. Copernicus Marine Service (model)

#IrishSea #tides #dataviz

Typical peak colour: the Lake District around Oct 29, London around Nov 4, Cardiff around Nov 7. Timing from 25 years of NASA MODIS phenology; colour from Forest Research's tree species map and the National Forest Inventory. #autumncolours #England #Wales

Same afternoon, same country: 19°C in Logroño, 31°C in Seville. Oct 1 was the coolest afternoon since early June in Logroño, Bilbao, Pamplona and Burgos. The south stayed in summer.

Data: ERA5 / ERA5-Land, Copernicus

#Spain #weather #dataviz #maps

설악산 10월 16일, 서울 10월 25일, 부산 11월 4일 무렵: 평년 단풍 절정.
Typical peak color in South Korea: Seoraksan around Oct 16, Seoul Oct 25, Busan Nov 4. 25 years of NASA MODIS phenology, placed on KMA's mountain foliage normals. #단풍 #fallfoliage #SouthKorea