Aleksey Tillo (November 25 (O.S. November 13), 1839, Kiev Governorate

Kiev Governorate

Kiev Governorate , or Government of Kiev, was an administrative division of the Russian Empire.The governorate was established in 1708 along with seven other governorates and was transformed into a viceroyalty in 1781...

 – January 11 (O.S. December 30), 1900, Saint Petersburg

Saint Petersburg

Saint Petersburg is a city and a federal subject of Russia located on the Neva River at the head of the Gulf of Finland on the Baltic Sea...

) was a prominent Russian

Russians

The Russian people are an East Slavic ethnic group native to Russia, speaking the Russian language and primarily living in Russia and neighboring countries....

 geographer, cartographer, land surveyor, lieutenant general

Lieutenant General

Lieutenant General is a military rank used in many countries. The rank traces its origins to the Middle Ages where the title of Lieutenant General was held by the second in command on the battlefield, who was normally subordinate to a Captain General....

 of the Russian Imperial Army (1894).

Aleksey Tillo's grandfather was a French Huguenot

Huguenot

The Huguenots were members of the Protestant Reformed Church of France during the 16th and 17th centuries. Since the 17th century, people who formerly would have been called Huguenots have instead simply been called French Protestants, a title suggested by their German co-religionists, the...

, but his father was a citizen of Russian Empire. Aleksey graduated from the Mikhailovskaya Artillery Academy (1862) and Department of Geodesy

Geodesy

Geodesy , also named geodetics, a branch of earth sciences, is the scientific discipline that deals with the measurement and representation of the Earth, including its gravitational field, in a three-dimensional time-varying space. Geodesists also study geodynamical phenomena such as crustal...

 of the General Staff Academy

General Staff Academy (Imperial Russia)

The General Staff Academy was a Russian military academy, established in 1832 in St.Petersburg. It was first known as the Imperial Military Academy , then in 1855 it was renamed Nicholas General Staff Academy and in 1909 - Imperial Nicholas Military Academy The General Staff Academy was a...

 in Saint Petersburg (1866). His greatest achievement was a hypsometric

Cartographic relief depiction

Terrain or relief is an essential aspect of physical geography, and as such its portrayal presents a central problem in cartography, and more recently GIS and 3D Visualization....

 map of the European part of Russia published in 1889. It was the first map of its kind that showed elevation correctly. For creating this map Tillo was elected a corresponding member of the Russian

Russian Academy of Sciences

The Russian Academy of Sciences consists of the national academy of Russia and a network of scientific research institutes from across the Russian Federation as well as auxiliary scientific and social units like libraries, publishers and hospitals....

 (1892) and Parisian

French Academy of Sciences

The French Academy of Sciences is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French scientific research...

 Academies of Sciences. Aleksey Tillo is known to have coined the term Central Russian Upland

Central Russian Upland

Central Russian Upland is an area of approximately 200,000 miles² in Southern European Russia and Northeast of Ukraine, located inside East European Plain....

. Also, he measured the length of the main Russian rivers and conducted work on level difference of Caspian Sea

Caspian Sea

The Caspian Sea is the largest enclosed body of water on Earth by area, variously classed as the world's largest lake or a full-fledged sea. The sea has a surface area of and a volume of...

 and Sea of Aral. Aleksey Tillo authored a number of works on geomagnetism and meteorology

Meteorology

Meteorology is the interdisciplinary scientific study of the atmosphere. Studies in the field stretch back millennia, though significant progress in meteorology did not occur until the 18th century. The 19th century saw breakthroughs occur after observing networks developed across several countries...

.

The Tillo Islands

Tillo Islands

The Tillo Islands is a group of small islands covered with tundra vegetation. They stretch along the Kara Sea coastal region, right off the bleak coast of Siberia's Taymyr Peninsula. Most of the islands of the group are a mere 3 or 4 km from the continental shore.The largest island of the...

, a small archipelago in the Kara Sea

Kara Sea

The Kara Sea is part of the Arctic Ocean north of Siberia. It is separated from the Barents Sea to the west by the Kara Strait and Novaya Zemlya, and the Laptev Sea to the east by the Severnaya Zemlya....

, as well as an island near Wilczek Land

Wilczek Land

Wilczek Land , is a large-sized island located at . It is a part of Franz Josef Land, Russia.Wilczek Land is the second largest island of the Franz Josef Archipelago. It is almost completely glaciarized except for two narrow areas along its western shores. The highest point on the island is 606...

 in Franz Josef Land

Franz Josef Land

Franz Josef Land, Franz Joseph Land, or Francis Joseph's Land is an archipelago located in the far north of Russia. It is found in the Arctic Ocean north of Novaya Zemlya and east of Svalbard, and is administered by Arkhangelsk Oblast. Franz Josef Land consists of 191 ice-covered islands with a...

, were named after Aleksey Tillo.