![Hydrology | Free Full-Text | Incorporating aSPI and eRDI in Drought Indices Calculator (DrinC) Software for Agricultural Drought Characterisation and Monitoring Hydrology | Free Full-Text | Incorporating aSPI and eRDI in Drought Indices Calculator (DrinC) Software for Agricultural Drought Characterisation and Monitoring](https://www.mdpi.com/hydrology/hydrology-09-00100/article_deploy/html/images/hydrology-09-00100-g001.png)
Hydrology | Free Full-Text | Incorporating aSPI and eRDI in Drought Indices Calculator (DrinC) Software for Agricultural Drought Characterisation and Monitoring
![Are calculators allowed? Anyone have a vintage calculator on hand for those pesky calculations? My father's old G.E. Scientific 90 is always on my desk : r/retrobattlestations Are calculators allowed? Anyone have a vintage calculator on hand for those pesky calculations? My father's old G.E. Scientific 90 is always on my desk : r/retrobattlestations](https://preview.redd.it/d1975epw45041.jpg?auto=webp&s=21bf16704a92970426592084870b6d744666c126)
Are calculators allowed? Anyone have a vintage calculator on hand for those pesky calculations? My father's old G.E. Scientific 90 is always on my desk : r/retrobattlestations
![Hydrology | Free Full-Text | Incorporating aSPI and eRDI in Drought Indices Calculator (DrinC) Software for Agricultural Drought Characterisation and Monitoring Hydrology | Free Full-Text | Incorporating aSPI and eRDI in Drought Indices Calculator (DrinC) Software for Agricultural Drought Characterisation and Monitoring](https://www.mdpi.com/hydrology/hydrology-09-00100/article_deploy/html/images/hydrology-09-00100-g005.png)