Some Data on Geography of the Tisza River Basin

Ivan Kruhlov

Ivan Franko National University of Lviv

Figure 1. Physical map of the Tisza Basin

The map is generated with the help of ArcInfo and ArcView GIS software from free data resources available on the Internet (http://data.geocomm.com and http://www.esri.com). Although the declared accuracy of the data sets is of a 1:1000,000 map, it would be more realistic to assume the accuracy of a 1:2000,000 map. The layers used are:

·         Digital elevation model 1000x1000m. Original US DMA DTED Level 0 data with a 30-second resolution in 1x1-degree tiles were merged, projected into UTM co-ordinates, and filled to eliminate spurious sinks.

·         Basin boundary vector layer was manually digitised using digital elevation data and hydrological network.

·         Hydrological network vector layer was clipped out from the nation-wide data sets using the basin boundary coverage. Attribute data were supplemented with the names of the main rivers. Only principal watercourses are shown on the map

·         Political / administrative units vector layer was clipped out of the larger data set. It has a network topology and contains data on boundary type (political/administrative), country name, province name, province area (sq. km), and province population (not reliable).

 

The obtained geographical database afforded simple spatial analysis. The results are presented in the diagrams below.

 

Table 1. Nationals distribution of the Tisza Basin area

 

Country name

Area (sq. km)

Portion (%)

Federative Republic of Yugoslavia

8,764

6

Romania

71,723

47

Hungary

45,015

29

Slovakia

15,825

10

Ukraine

12,712

8

Total

154,039

100

 
     
 
 
  Figure 2. National shares in the Tisza Basin area  
     
   
  Figure 3. National distribution of mean elevations of the Tisza Basin (meters above sea level)  
     
 
 
  Figure 4. National distribution of mean surface gradients of the Tisza Basin (degrees)  
     
Mean elevation and mean surface gradient (slope) indicate dissection of the terrain and thus natural possibilities for economic, especially agricultural, development – higher values imply fewer possibilities.
     
  Table 2. Attribute table of the Political /administrative units data set  
County
Administrative unit
Population*

Area (sq. km)**

Type

Local name

Hungary

Borsod-Abauj-Zemplen

777201

7250

County

Megye

Hungary

Szabolcs-Szatmar-Bereg

588858

6072

County

Megye

Hungary

Nograd

231528

1216

County

Megye

Hungary

Heves

337044

3602

County

Megye

Hungary

Hajdu-Bihar

548097

6168

County

Megye

Hungary

Pest

2855206

2905

County

Megye

Hungary

Jasz-Nagykun-Szolnok

435609

5684

County

Megye

Hungary

Bekes

416617

5593

County

Megye

Hungary

Bacs-Kiskun

545800

2331

County

Megye

Hungary

Csongrad

431159

4195

County

Megye

Romania

Satu Mare

423715

4390

County

Judet

Romania

Maramures

565393

6190

County

Judet

Romania

Bistrita-Nasaud

333019

5129

County

Judet

Romania

Bihor

671335

8216

County

Judet

Romania

Salaj

273601

3500

County

Judet

Romania

Cluj

755250

5927

County

Judet

Romania

Mures

631670

6597

County

Judet

Romania

Harghita

369052

2845

County

Judet

Romania

Arad

515185

8059

County

Judet

Romania

Alba

435432

6437

County

Judet

Romania

Sibiu

517182

2046

County

Judet

Romania

Hunedoara

576976

6144

County

Judet

Romania

Brasov

706163

190

County

Judet

Romania

Timis

737763

5564

County

Judet

Romania

Caras-Severin

414785

84

County

Judet

Romania

Caras-Severin

414785

212

County

Judet

Romania

Caras-Severin

414785

134

County

Judet

Romania

Gorj

394030

59

County

Judet

Slovakia

Vychodoslovensky

1473758

13863

Region

Kraj

Slovakia

Stredoslovensky

1595354

27

Region

Kraj

Slovakia

Stredoslovensky

1595354

1941

Region

Kraj

Ukraine

Zakarpats'ka

1288200

12716

Province

Oblast

Yugoslavia

Serbia

-

8756

 

 

 

*Population data are not reliable, or missing.

**Area is only for the parts within the Tysa Basin

 

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